How Thick Is An Interior Door

Standard Door Size 101: Important Measurements All Homeowners Should Know

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Q: We just purchased a home that was built in the 1960s and will be remodeling to bring it up to date. Our plans include adding some new doors, and we’re wondering what sizes will work best. Are there any standard door guidelines?

A:Congratulations on your recent acquisition of a residence! Because many older homes were built before local building rules were established and because doors were typically fashioned by hand, not all older homes have doors of the same size as one another. Doors are now available in regular sizes, and they can be found at DIY stores and home improvement centers around the country. Additionally, many retailers sell a variety of different door sizes that may be utilized in specific regions of the house in addition to the usual ones.

There are standard door sizes and some alternates available.

Interior doors are available in a variety of standard heights, widths, and thicknesses, which are as follows:

  • Interior doors are typically 80 inches in height, according to industry standards. For doors leading from one room to another, this is the most typical height for corridor doors. Due to the fact that an 80-inch door is 6′ 8″ tall (pronounced “six-eight”), it is referred to as a 6/8 door (pronounced “six-eight”). A slightly shorter 78-inch door is also available for immediate delivery. It is referred to as a 6/6 door, and it is designated for closet and utility doors. The standard door width for interiors is 32 inches in height and breadth. For a passage door, this is the minimum width that must be met. You might also be able to locate some thinner doors in stock, such as 30 inches, 28 inches, and 24 inches in width. If you need a closet or utility door, these smaller widths are permitted by code
  • You may be able to obtain 36-inch-wide doors on hand. Wider choices that comply with the Americans with Disabilities Act (ADA) are a popular choice for homes with people who have mobility challenges. The inner thickness is 13.8 inches on average. Generally speaking, this is the most popular interior door thickness, and it is often the only one available at home improvement stores. Some businesses may have doors in stock that are 112 inches thick and 134 inches thick alternately. The walls of these are significantly thicker than the norm, and they are frequently insulated or constructed of hardwood. Interior door jamb thickness on pre-hung doors is 4-9/16 inches as a general rule of thumb. The door jamb is the frame that attaches to the wall and provides support for the door through the use of hinges. When installed in a normal two-by-four wall (which is really made up of studs that are 112 inches by 312 inches in size), this thickness is intended to provide enough insulation. The thickness of an alternative jamb is 6-9/16 inches. It is intended to be used with two-by-six walls (which are really formed from studs that measure 11 1/2 inches by 5 12 inches)

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Measuring for a new door is a simple process.

The majority of the time, when purchasing a door, you’ll want one that is pre-hung, which means it comes with the frame (jamb) already attached. The other form of door, known as a “slab door,” is distinguished by the fact that it has simply the door and no frame.

Measuring for a Pre-Hung Door

  1. To find out where the sides of the door will fit when it is closed, open the door and take a measurement from the inside of one jamb tothe inside of the other jamb (see illustration). Make a note of the number
  2. While the door is still open, take a measurement from the top of the jamb on the inside (where the door would fit when closed) to the bottom of the door. Make a subtraction of 34 inch and put the result down. Flooring allowance is represented by a 34 inch deduction. Take a measurement of the thickness of the door itself and put the result down on paper. When you go to the home improvement center, make sure to have all three numbers with you.

Measuring for a Slab Door

  1. To determine the width, height, and thickness of a slab door to replace, do not measure the jamb—measure the door itself.

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Choose a pre-hung door with slightly smaller measurements.

A skilled carpenter (you’ll need at least basic carpentry abilities to hang a door) may then use this method to fit the new door frame into the rough opening that was previously used to hold the old door. It’s not uncommon to have to use a few shims to get a snug fit. It is best to avoid purchasing a pre-hung door that is slightly larger in size than your old door if you are doing the work yourself. It would be necessary to remove a section of the rough-in frame (in the wall) in order to fit the door jamb, and because this would modify the load-bearing structure of the wall, it would be best left to a professional.

Or, select a slab door with slightly larger measurements.

If you’re simply changing the door and not the jamb, you’ll wind up with gaps between the door and the jamb if you get a smaller door. Instead, purchase a slab door that is somewhat bigger in size than the current door and then shave it down to the precise size of the old door. Fitting a slab door as a do-it-yourself job will take time since it needs accuracy to form the indentions needed to fit the hinges and install a new strike plate that is properly matched to the old door. While installing a slab door may appear to be less complex than installing a pre-hung door, it is really more complicated.

If you want more wall space, consider a narrower door.

Large doors may be overwhelming in tiny spaces, so if you have a limited amount of available space, a smaller door can create a cleaner aesthetic while also adding wall space. Removal of the existing door and jamb, as well as reconfiguration of the rough-in frame in the wall, is required in order for a new pre-hung door to fit the available space. This project is well within the capability of a do-it-yourselfer with a rudimentary understanding of carpentry.

Consider remodeling with wider doors if your home’s doors are too narrow.

When upgrading an older property, it may be necessary to enlarge entrances since it can be difficult (if not impossible) to carry heavy furniture through them in the first place. There are a few 36-inch doors available in stock, but your best bet is to order custom doors from a home center or building supply store.

Because the rough-in opening in the wall will have to be increased in size, it is recommended that a professional install these doors for you. RELATED: Weekend Projects: 5 DIY Door Designs to Get You Started

You can also order a custom size pre-hung door.

If your measurements don’t quite match the normal size for doors available at the shop, but you aren’t willing to extend or narrow the existing door frame, know that manufacturers will custom-make pre-hung doors to your exact requirements at no additional cost. This option ensures that your door will fit exactly in its jamb and will open and close with ease when you do so. Using this method, you may remove the old door casing and trim, install the new door, and then replace the original casing and trim, painting or staining the new door to match the old.

Entry doors are usually 36 inches wide.

However, while a door width of 36 inches is considered excessive for an interior door, it is considered conventional for front doors. The standard height, which is 80 inches, stays the same, however, as before. Additionally, the majority of entry doors are slightly thicker than interior doors, with a normal thickness of 134 inches. These somewhat wider doorways make it easy to bring in huge appliances and furniture pieces into the house without difficulty. For two-by-four and two-by-six wall framing, standard jamb thicknesses are identical to interior door jamb thicknesses, measuring 4-9/16 inches or 6-9/16 inches, respectively, to fit the walls.

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Standard Inside Door Sizes

In most cases, the International Residential Code does not specify that an interior door must be as large as the main entry door of a home, but it does provide minimum height and width standards for interior doors. As a result, the majority of typical interior doors are the same height and are available in widths ranging from 28 to 32 inches.

Width and Height

An internal passage door is any door that is used to travel from one room to another, and the code specifies that these doors must be 80 inches in height to comply with the requirements. In recognition of the fact that this translates to 6 feet 8 inches, door makers refer to it as a 6/8 door. In some cases, such as closets, the code allows 78-inch — 6/6 — doors, and you may be able to buy one at your local construction supply store. Because the 32-inch rule for route doors does not apply to closet or bathroom doors, most door stores have doors in sizes ranging from 28 to 32 inches.


When it comes to fitting doorknobs and hinges on interior doors, the thickness of the door is an essential concern. It is possible to purchase interior doors that are as thin as 1 3/8 inch in thickness and as thick as 1 3/4 inch in thickness, which is the same thickness as an outside door. The thicknesses of 1 1/2 and 1 5/8 inches are considered intermediate.

What is the Standard Door Size for Residential Homes?

When purchasing a door, there are a number of aspects to consider. Which kind of door do you prefer? Do you want a slab door or do you want a pre-hung door? Is it better to have an out swing or an in swing?

Once you have obtained this information, you will need to begin measuring your results. If you don’t know what you’re doing, measuring a door and its frame may be a frustrating experience. Here are some useful measurement methods to follow, as well as some fundamental facts about typical door sizes.

Standard Size for Exterior Doors

Generally speaking, the conventional size for an outside door is 80 inches by 36 inches, which is 6 feet, 8 inches by 3 feet in length. Modern homes are increasingly being built to the length of 96 inches (8 feet), with standard-width stock exterior doors available in 30 and 32-inch widths. Some door manufacturers offer doors in heights ranging from 7ft to 8ft and widths ranging from 24 inches to 42 inches. The height of fiberglass or steel doors is fixed at 6 ft. 8 inches or 8 ft. tall, respectively, depending on the material.

  1. 80″ is the most popular size.
  2. 109″ or higher is also prevalent.
  3. The majority of the time on double door systems 32″ is commonly used in double door systems.
  4. 42″ is a standard size for newer modern homes.

Standard Size for French Doors

Generally speaking, the conventional size for an outside door is 80 inches by 36 inches, which is 6 feet, 8 inches by 3 feet in length. Modern homes are increasingly being built to the length of 96 inches (8 feet), with standard-width stock exterior doors available in 30 and 32-inch widths. Some door manufacturers offer doors in heights ranging from 7ft to 8ft and widths ranging from 24 inches to 42 inches. The height of fiberglass or steel doors is fixed at 6 ft. 8 inches or 8 ft. tall, respectively, depending on the material.

Standard Size for Sliding Glass Doors

A great deal of natural light enters the house through these types of patio doors. They are the most widely used and least priced form of patio door available today. This sort of patio door glides in a parallel motion, which makes it convenient for residents to enter and exit the house quickly and easily. The greatest spot to put sliding doors would be on a patio or deck, depending on your preferences. A sliding glass door is typically 6’8″ high and 6′ wide, which is the industry standard. Aside from the standard sizes of 5’0″ by 8’0″, 6’0″ by 8, and 8’0″ by 8’0″, other common sizes are 5’0″ x 8’0″, 6’0″ x 8’0″, and 8’0″ x 8’0″.

Standard Size for Interior Doors

All passage doors must have a minimum height of 80 inches, and the usual widths for internal doors are 24″, 28″, 30″, 32″, and 36 inches in width. The minimum suggested door width to allow for the passage of people with impairments is 36 inches. The standard thickness for an internal door is 1 3/8 inches; however, if your door is wider than 36 inches or taller than 90 inches, the suggested thickness for that door is 1 3/4 inches.

The chart below contains a list of widths and heights, as well as a description of what those sizes are often used for. Keep in mind that you may adjust the door heights in any area of your home.

1′-3″ 1′-6″ 2′-0″ 2′-4″ 2′-6″ 2′-8″ 3′-0″
6/8 Used for bi-fold doors Used for bi-fold doors Used for bi-fold doors Used for bathroom doors Used for bathroom doors Used for bedrooms Used for bedrooms
7/0 Used for bi-fold doors Used for bi-fold doors Used for bi-fold doors Used for bathroom doors Used for bathroom doors Used for bedrooms Used for bedrooms
8/0 Used for bi-fold doors Used for bi-fold doors Used for bi-fold doors Used for bathroom doors Used for bathroom doors Used for bedrooms Used for bedrooms
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Standard Size forCloset and Utility Doors

Generally speaking, utility and closet doors have narrower passageways than conventional doors. Doors in homes built prior to 1990 might be as small as 18 inches in some instances. Newer models are typically 30 inches wide and 96 inches tall, with a standard width of 30 inches.

How to Measure your Door Properly

If you want to replace a door that you already have, take measurements from top to bottom of the present door. Continue by taking measurements from the left to the right side of the door. In addition, you should take note of the thickness of the door. The majority of doors have a thickness of 1 3 4 inches. It’s important that your door doesn’t deviate much from that measurement. The width of the door jamb as well as the height and breadth of the frame are equally vital to take into consideration.

The next step is to increase the width and height of the door by 2 inches, respectively, to allow for a proper entryway opening.

Whether or whether you are utilizing a pre-hung door, you will need to take a rough-in measurement.

Standard Interior Door Size (Dimensions Guide)

Listed below is our standard interior door size chart, which includes the most often seen door dimensions for the bedroom, bathroom, and closet. The height of the door is the most common measurement for this type of door. All internal doors that will be utilized as passageways between rooms should be at least 80 inches in height to provide proper ventilation. (6’8) This provides enough space for the great majority of individuals to pass through the doorway without hitting their heads on the door jamb.

Closet doors are commonly installed at a height of 78 inches (6’6″).

What Is The Standard Interior Door Size?

The standard widths for various types of interior doors can range anywhere from 24 inches to 36 inches in width. Interior doors are typically 32 inches wide, which is the most common width. As a result, the conventional internal door dimension is 32 inches wide by 80 inches high. The majority of individuals are able to pass through a doorway of this size without brushing up against the edges of the frame. The width of each door in your home must be at least 36 inches wide if you want to make it wheelchair accessible.

Standard Interior Door Thickness

Interior doors are typically 13/8″ thick, which is the most common thickness. There are a variety of door thicknesses available, including 112″, 158, and 134″. Oversized or extremely huge doors (those that are more than 90 inches tall or more than 36 inches wide) are often thicker than standard-sized doors.

They are also more expensive. When selecting door hardware, such as doorknobs and hinges, the thickness of the door becomes crucial to take into consideration. Fire doors are also thicker than conventional interior doors, making them more resistant to fire.

How to Measure a Door

Doors are one of the finishing touches that may be added to a new building project, but you shouldn’t put off thinking about them until the very end of the project. During the framing phase, it is determined what size the door will ultimately be. In order to create a ‘rough opening’ between rooms that is sturdy enough to hold a door and door frame, contractors install studs between the rooms. The general rule of thumb for rough openings is that they should be two inches wider than the door that will ultimately be put in them.

  1. When it comes to height, the rough opening must be at least two and a half inches higher than the door it is intended to accommodate.
  2. Once you’ve created a rough opening, the next step is to build a door frame and hang a door, or you may install a pre-hung door that has already been installed.
  3. Professionals recommend that you measure the entryway (the aperture through which the replacement door will hang) rather than the existing door when determining the suitable size for a replacement door.
  4. You’ll also need to figure out what kind of thickness you want your replacement door to be.

Door Width and Height

If you want to know how wide the door you will need to order is, you should stand in front of the existing door and wait for it to open away from you. Open the door, and prop it open if required, to avoid getting your fingers pinched in the hinges of the doorframe. Measure the distance across the door opening with a tape measure by placing one end against the inside of the door frame and the other end against the outside of the door frame. A parallelogram should be drawn between the tape and the floor.

Your new door will be ordered based on the first measurement you take, which will be the largest of those three measurements.

As you would when measuring the width of a door, stand in front of it and open it away from yourself.

Both of these measures should be precisely the same as one another.

Door Thickness

You may utilize the current door to take the final measurement, which is the thickness of the door. Mark off numerous spots along the border of the door where you want to take measurements with a tape measure.

This is especially crucial if you plan to reuse the hinges or door knob, as these pieces of hardware are built depending on the thickness of the door and must be installed correctly the first time.

Interior Door Sizes

Buildings of one or two stories, as well as townhouses, are subject to standardized criteria of safety and accessibility under the International Residential Code (IRC). In addition to any applicable municipal codes, this is what the home inspector will refer to when he or she comes to sign off on your new house. While there are severe criteria for the main entrance to a property, there are no such rules or regulations for inner doors. Where they are present, all that is required is that they be in excellent functioning condition and that they are installed in accordance with manufacturer’s specifications.

Standard Bedroom Door Size

There is no standard size for bedroom doors because they are all different sizes. Interior doors are typically 32 inches wide and 80 inches high, much like the rest of the house. The normal thickness is 1 3/8″ in diameter.

Interior Double Door Sizes

In terms of bedroom doors, there is no conventional size. They are typically 32 inches wide and 80 inches high, similar to other internal doors. One and three-eighth inches is the usual thickness.

Standard French Door Size

A ‘French’ door is comprised of a thin/light frame that surrounds panes of glass in a symmetrical pattern. The panes of glass generally account for the vast bulk of the door’s total floor space. They are frequently, but not always, hung in groups of two. If the doors are to be hung in pairs, they must be the exact same size and thickness. A French door does not have a set door size since they are made to order. There are several sizes of French doors available, with the lowest measuring around 30 inches and the largest at 72 inches.

Standard Closet Door Size

Neither the International Residential Code nor the International Building Code regulate or standardize closet doors. The size of the rough aperture is the sole constraint on the design. In most cases, closet doors are 30 inches wide by 80 inches high. Bifold doors are commonly found in closets; instead of swinging out into the room, these doors fold in on themselves instead. The typical width of a bifold door panel is 24 inches wide. More information about closet door sizes may be found here.

Standard Bathroom Door Size

A bathroom door must comply to the same basic size requirements as any other interior door in order to function properly. It should be at least 80 inches high and 24 to 36 inches broad to be effective. The thickness and design of the door should be in harmony with the design of the door frame.

Standard Front Door Size

It is important to note that a front door is an external door, which means that it connects the inside of your property with the outside. A house’s main entrance must be at least 80 inches tall and 36 inches wide in order to comply with the International Residential Code. (Side doors and back doors can be narrower in width; the most frequent widths for these doors are 28″, 30″, and 32″ in width.) Exterior doors also have the extra job of protecting your property from the weather and keeping the temperature inside your home consistent.

As a result, they are typically a fraction of an inch thicker than a traditional inside door. Typically, the thickness of a normal front door is 13 inches.

Interior Door Sizing Considerations

Making selections concerning interior doors is difficult since you will be forced to live with the consequences of your decisions for the duration of your ownership of the property. The process of going back and making a doorway larger or narrower is difficult and time-consuming; yet, it is sometimes necessary. All of the inside doors in your home should be of the same style and design to avoid confusion. If you have a doorway that is not conventional, be sure that the door you choose is available in all of the sizes you require.

If you want to live in your house for the foreseeable future or currently have mobility issues, consider making all of the doors 36 inches wide.

Lastly, take into consideration the finish of your inside door.

Two coats of priming followed by two coats of paint can add as much as 1/32″ to the width of the door on either side of the threshold.

Standard Door Frame Size

It is necessary to put door frames into the rough aperture in order for the door to be supported properly by the frame. The door is then connected to the door frame with the use of hinges. Although there is no universally accepted standard, the most typical door frame size in the United States is 36 inches wide by 80 inches tall.

Prehung Door Sizes

Pre-hung doors are pre-hung doors that have previously been attached to a frame with hinges. The frame of the door just has to be hammered into the studs around the rough opening, and then the door is ready to be completed with molding. This method is quite popular among do-it-yourselfers, and for good reason. Hanging a door requires a certain degree of patience and skill, and even experienced pros might find it difficult at times. Purchasing a pre-hung door eliminates all of the guessing and requires no special skills.

They are normally available in two basic widths — 30 inches and 36 inches — depending on the manufacturer.

Selecting an Interior Door

Interior doors can be basic and unadorned, or they can be ornately designed. Choose a door that complements or enhances the architectural style of your home, rather than one that matches or enhances the present dcor of your home. Tastes vary with time, but doors are built to last a long time and are seldom replaced, so you want to pick a decision that will look excellent for many years to come.

When considering doors, three factors should be considered: materials (what the door is made of), functionality (how the door will be used), and cost (remember to include in both materials and labor costs!)

Door Materials

Wood is the most popular material for interior doors, and it is also the most expensive. The cheapest doors feature a hollow core and are made of wood or fiberboard, which makes them the least costly. Solid wood doors are also available upon request. Glass, stainless steel doors, fiberglass, and aluminum are some of the other materials that may be used for doors. The material and design of your door should be complementary to the overall look and feel of your house. Consider the following example: A sleek, fiberglass door might be ideal in a modern home, but it would appear out of place in a more classic cottage setting.

Door Functionality

When selecting a door, keep in mind the function it will perform in your home. Doors serve as a visual and physical barrier to a space, as well as a means of maintaining privacy. These materials can also be used to produce sound isolation and dampening. This is one of the reasons why many homeowners prefer to install stronger doors in their bedrooms or home offices. Consider how you want the door to open and close. Is it better to have it open into the room or out? Should it be hung on the left or right side of the door frame, depending on your preference?

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Does there appear to be enough space to the side of the rough opening to allow the door to be completely opened in that case?

Because it reduces the likelihood of colliding with someone walking by, interior doors that link a room with a corridor are often opened into the room.

Door Cost

For a single door, you may anticipate to pay between $50 and $500 for the door frame and hardware. It is simply your time that will be extra expensive if you do the hanging yourself. In the event that you hire a professional to install it, you may anticipate to pay between $100 and $300 per door, depending on your location and the intricacy of the door in question. Pre-hung doors are often somewhat more expensive to purchase than unfinished doors, but they can be less expensive to install.

Standard Door Size

Are you contemplating the installation of a door in your residence or place of business? Perhaps you are planning a home improvement project that will include the installation of a new door. Alternatively, you may require the replacement of a damaged office door. It is critical to grasp typical door sizes, door measurements, and the construction rules that regulate them, regardless of the situation. You could be pondering things like the following:

  • I’m curious about the normal door sizes. How do you determine the size of a door? What is the normal size of an external door? What is the normal size of an inside door? In what dimensions are typical doors measured? What is the normal height of a door frame
  • What size door should you use for your entrance
  • What is the normal size of a door jamb

Different door types, such as interior doors, exterior doors, barn doors, French doors, pocket doors, and entrance doors, all have a range of sizes to accommodate different applications. The appropriate door size for your requirements might vary depending on the structure of your building or house as well as your individual circumstances. In order to calculate the width and height of a door while replacing or installing a door, you must first measure the size of the door opening.

Before choosing on a replacement door or making any adjustments to your present door frame and door size, you should take the door jamb, the door frame, and any applicable building codes into consideration as well.

Standard Door Size

Choosing between a pre-hung door and a door slab is an option if you are replacing or installing a new door to your residence. A pre-hung door contains the door itself, the door hinges, and the door frame, making it a fantastic alternative for replacing a whole door and frame set at the same time. A door slab is a door panel that does not contain the frame, hinges, or hardware; it is the most cost-effective option if you simply want to replace the door panel and leave the other components intact.

There are a variety of door sizes available to choose from.

The usual door height in both commercial buildings and residential residences is 80 inches, which is the height specified by most building rules in most jurisdictions.

Standard Exterior Door Size

The International Residential Code determines the dimensions of outside doors (IRC). In accordance with IRC building rules, external doors must be a minimum height of 80 inches to be functional. Exterior doors are normally 3 feet wide and 80 inches high, with a conventional height of 80 inches. Front door, rear door, garage entrance door, and fire/security doors are all examples of external doors that can be found on a house or building. Exterior doors in contemporary homes can be much higher, with a maximum door height of 96 inches possible.

The normal exterior door thickness is 1 3 4 inch.

Most of these doors are 80 inches tall and 6 feet wide on average—but there is a broad range of door width widths available to meet your demands, ranging from 60 inches to 96 inches in width, depending on your needs.

Standard Interior Door Sizes

The International Residential Code (IRC) also dictates the size of inside doors. Interior doors are not needed to be as huge as the main entry door, but they must be at least 80 inches in height, just like an exterior door, in order to be considered functional. Inside interior doors, such as a bedroom door, bathroom door, pocket door, and barn door (except a closet barn door), are most commonly found in three widths: 28 inches, 30 inches, and 32 inches. However, you may get them in a variety of other widths as well, including 36 inches.

Closet doors are thinner than ordinary interior doors and are not needed to comply with the same building requirements as standard interior doors.

Bi-fold doors are typical closet door designs that have two panels for a single door and four panels for double doors. Bi-fold doors feature two panels for a single door and four panels for double doors. Bi-fold doors are available in a variety of sizes to meet your specific requirements.

Standard Commercial Door Sizes

The International Building Code (IBC) regulations and the Americans with Disabilities Act (ADA) standards are used to define the size of doors in commercial buildings. People must be able to enter and escape a building in an emergency situation, thus these construction regulations regulate the maximum and minimum height and width of doors to guarantee that they can do so safely. With a few exceptions, the International Building Code requires commercial building doors to have a minimum of 32 inches wide and a maximum of 48 inches wide.

When it comes to commercial construction rules, doors must be at least 80 inches tall in order to comply with the requirements.

When designing accessible doors in accordance with ADA building requirements, the clear width of the door opening must be at least 32 inches and a maximum width of 48 inches.

The ADA construction rules additionally include additional criteria that specify the door surface as well as the knobs, locks, pulls, latches, thresholds, and closing speed of the door.

How to Measure a Door

Before you can replace a door in your house or building, you must first measure the width, height, and thickness of the existing door in order to determine the right measurements for the new door you will use. In the event that you are replacing your present door with a slab rather than a pre-hung door, these measurements will suffice to ensure that you get the right size. Also, remember that when measuring doors, the panel is taken into consideration, not the frame or the aperture. Measure the height and breadth of your door from top to bottom to calculate the height of your door, the width of your door from left to right to determine the width of your door, and the depth of your door to establish the thickness of your new door.

Find the width of the door jamb by measuring the top, middle, and bottom of the frame’s interior, and the height of the door jamb by measuring from the floor to the top of the door jamb.

Standard Door Frame Size

You must first identify the size of the rough aperture before proceeding with the installation and building of a new door. Using this method, you may properly install a prehung door, which includes the frame, or you can cut your own rough opening to make your own frame if you like. A new rough opening may be necessary to accommodate a larger door, particularly when upgrading from a single to double door or when building an additional door where there was previously none. If you have the room, you may want to consider doing so.

With the additional 2 inches in width and height, your door and door frame will be absolutely plumb, level, and square, and your wall will be able to expand and contract in response to changes in weather.

Standard door sizes range in width from 24 to 36 inches, but the majority of them are 80 inches in height.

A rough opening of 32″ x 82 12″ will be created by a door that measures 30″ x 80″.

Take measurements from the floor to the header on all three sides of the aperture to get an approximate opening height. The smallest dimensions on the exposed drywall or sheathing can be used to determine the thickness of the wall structure.

Standard Door Sizes

When installing a new door, there are a few procedures that must be followed to ensure that you have the exact measurements for the door. First and foremost, you must choose what style of door you require. Want to replace your old door with a new one that is the same size as your old one? Alternatively, you may choose to replace your old door with a larger one—for example, by upgrading from a single door to a double door. You might also modify the function and look of the door by replacing it with a pocket door or a sliding barn door instead of a normal door.

  • If you’re replacing your door with a larger one or changing the function of your door, you’ll most likely need to make adjustments to the size of your rough opening as well.
  • You may even choose to have a bespoke door made for you.
  • Rustica is a well-known supplier for bespoke front doors, which may enhance both the exterior and inside of your home with their beauty and design.
  • A Rustica door may assist to enhance the interior decor of your home, increase the market value of your property, and create a creative statement in your home.

What Is the Standard Interior Door Width? – Buying Interior Doors

Are you contemplating the purchase of an internal door for your home? There are a number of factors you should take into consideration before proceeding. The size, style, color, and design of the door are only a few examples of these considerations. However, when it comes to door size, it’s critical to be certain that you acquire the correct measurement. You’ll need to know how to use a measuring tape in order to be able to accurately measure both the door and the frame for this. If you are an individual who does not have access to a measuring tape or who has never used one before, it is recommended that you get some guidance from a trained specialist.

Standard interior door frame width

I’m wondering what the normal sizes are for inside doors. All internal passage doors must be a minimum of 80 inches tall to be considered safe. Taller doors are available if desired, however it is crucial to remember that taller doors must often be purchased in advance and will cost significantly more. This may be important if you have a tall member of the family living in your home. If you’re looking for width, the normal widths range from 24 to 36 inches in width. Closets and tiny bathrooms, for example, have a width of around 30 inches, whereas doors that are handicap accessible often have a width of approximately 36 inches.

It’s important to note that most of the furniture available today will not fit through a doorway that is less than 30 inches wide when determining the width of the passage.

Not being able to fit newly purchased furniture through the doorway is one of the most irritating experiences a person can have.

Despite the fact that this measurement might vary in size, it is preferable not to go too far from it. It is better to be too thin than too thick since too thin will result in a fragile door, while too thick would appear weird and detract from the overall aspect of the space.

Utility, closet, and storage rooms

A narrower passageway is common in utility, closet, and storage rooms, as opposed to a standard inside doorway. When these doors were first introduced in the 1990s, they might be up to 18 inches wide. That’s a little too narrow. However, today’s normal width for utility, closet, and storage rooms is around 30 inches, with a height ranging from 80 to 96 inches at the very least.

Pre-hung doors vs. slabs or blanks

Interior doors are available in two distinct configurations. Pre-hung doors refer to internal doors that are sold with frames attached to them. The terms “banks” and “slabs” refer to the fact that they are offered without their frames. If you already have a door frame and are satisfied with the size, you may want to consider purchasing a slab to replace it. Pre-hung doors, on the other hand, are the better option if you want to be able to modify the height and breadth of the frame at the same time.

The reason for this is the convenience it provides as well as the labor money it saves a contractor.

In addition to this, pre-hung doors include hinges that are integrated into the margins of the door frame.

Pre-hung pros

The hinges have already been installed. The framework has already been established. It is not essential to cut mortises in the wood. Overall, there is less work.

Pre-hung cons

There is a possibility that the door will not fit properly. It has a substantial amount of weight to it. It’s difficult to work with. It is possible that the door will become twisted within the frame if you do not exercise caution.

Slab door pros

It is significantly less expensive. Design that is adaptable. Installing vintage doors is a simple process.

Slab door cons

Carpentry labor may be required for a number of hours. It is difficult to achieve a smooth swing. You’ll need to make mortises in the wood. Before placing your order for a pre-hung interior door, make certain that you know the thickness of the wall on one side, the size of the holes for the lockset, and the placement of the holes, among other things. Before placing your order for your pre-hung inside door, you will need to provide these specifics.

See also:  How To Work With An Interior Designer

Flush vs. panel doors

Interior doors are available in two designs: flush and panel. Flush doors are distinguished by having a smooth, level surface on the inside and outside. The surface is either painted or stained, and it complements a wide range of interior design styles. Most flush doors include a solid foam core in the middle, which helps to keep the door from warping in extremely cold or hot weather. Flush doors are really trendy these days. In reality, they’ve been in millions of households for more than 50 years and continue to be so.

  • Panel doors are constructed in a somewhat different manner.
  • On occasion, they are also employed for the installation of glass panels.
  • Why?
  • Consequently, if you live in a humid climate, panel doors may be a good option for you to consider for your residence.
  • The reason for this is that they are entirely solid and do not distort as easily when exposed to damp environments.

MDF is a strong material that will not warp readily in humid conditions, and it is also considerably more affordable. What’s the best part? MDF doors are pre-primed and ready to be painted when they are delivered. You’ll have a lot less work to do as a result of this.

Different types of interior doors

It is possible to find many various types of interior doors, and the thing that distinguishes them all from one another is the method in which they are operated. With the exception of pocket doors, all of their frames are made in the same manner. A few illustrations are shown below.

Folding doors

Folding doors are typically utilized when there is a large opening between two doors. They are normally constructed from the same materials as swinging doors, however they are utilized in situations when swinging doors are not acceptable. Folding doors are attached to a track and operate by sliding and opening up on hinges as needed. For bi-folding doors, the usual height is around 80 inches, and the total width ranges from 24 to 72 inches.

Hinged doors

The most prevalent type of door is the hinged door, which is seen in almost every modern home. Most of the time, they have a hinge on one side. The majority of hinged doors are constructed with two vertical stiles and two horizontal rails. The lock on a hinged door is always located on the lock stile, and the hinges are always located on the hinge stile when the door is hinged. A minimum height of 80 inches is required by most employers. The width of the door must be between 24 and 36 inches, and the normal thickness of the door must be at least 1-3/8 inches.

Bypass doors

Bypass doors are typically seen in closets, laundry rooms, and tiny pantries, to name a few applications. These doors are made of lightweight materials, hang from an overhead track, and move back and forth with the help of rubber rollers. Bypass doors are typically constructed in three sections. Whenever you open a door, the three portions of the door bypass each other and allow you to enter the closet.

Wall-mounted barn doors

Wall-mounted barn doors are frequently used in the construction of homes in order to conserve space. These doors are designed to be installed flush against a wall and to move back and forth on a track. The track is typically 48 to 96 inches in length and is made of metal construction. They are available in a variety of designs and have a highly fashionable appearance. What’s the best part? Barn doors that are installed on the wall are reasonably priced. Similarly to the other doors, your barn doors must be a minimum of 80 inches tall, 24 to 36 inches wide, and a minimum thickness of 1-3/8 inches.

Pocket Doors

Pocket doors are the ideal solution for spaces that are limited in space. Pocket doors are a type of door that slides into and out of a pocket in the wall. Pocket doors, out of all the internal doors listed below, are the ones that save the greatest floor area. Pocket doors have a somewhat different frame than other types of doors. The frame is made up of a side jamb and a top jamb, both of which have a track linked to them. At the top of the door are rollers, which allow it to slide back and forth with ease when it opens and closes.

When it comes to conventional sizes, pocket doors are often the same as the rest of the doors.

Choosing the right interior door

In order to select the best interior door for your space, you’ll want to start by considering the overall design and feel of the area. You want a theme that is constant across the space. Pocket doors, for example, are ideal for use in small, snug spaces such as wine cellars, closets, and laundry rooms, among other places. Yet another item you’ll want to think about is how big the room is. In situations when there is a lack of available space, folding doors, wall-mounted barn doors, and pocket doors are all excellent options.

  1. Hinged doors are also more visually appealing in larger spaces.
  2. What type of material is my flooring made of?
  3. What is the height of the ceiling in my house?
  4. How much space is available on the bus?
  5. Choosing a hinged door will need you to determine which way the door will swing if you do decide to go with one.
  6. Consider the following suggestions if you’re having trouble choosing whether the door should swing outward or into the room: The door to a bedroom is often hinged and swings into place.

Closets, laundry rooms, and other tiny rooms, on the other hand, are almost often equipped with doors that open outwards. Do what works best for your family and what makes you feel the most comfortable in your own house.

Decide on a specific material

The materials used to construct doors come in a variety of shapes and sizes. Solid wood, glass, MDF, metal, and even laminate are some of the materials from which you may pick. The type of material you choose for your door depends on a number of factors, which you should examine before making your final selection. To begin, select a material that complements the overall design of the area. You may want your door to be created from the same type of wood as the rest of the room, for example, if there is a lot of hardwood flooring throughout the area.

  • Sunrooms, kitchens, and pantries all benefit from the use of glass doors.
  • Sound from conversations, music, and other sources of disturbance is muffled by solid wood, allowing for greater seclusion.
  • It is not uncommon for hard woods such as oak, cherry, and walnut to be highly pricey.
  • Compared to solid wood doors, hollow wood doors are significantly less costly and less taxing on the bank account.

Properly framing your door with castings

If you do opt to purchase a slab door, you will be responsible for framing the door yourself. It will not only make the door stand out, but it will also add to the general beauty of the area if it is cast in the appropriate way. If your door has a sophisticated design, it is best to utilize a simple casting as a rule of thumb. Similarly, if the door design is basic, a difficult casting should be used. Having two intricate designs that bounce off one other is not a good thing.

Why is it important to get the right size interior door?

There are a number of reasons why choosing the proper interior door size for your home is critical to its success. If your internal door is too large, it will, without a doubt, not fit. Alternatively, if your inside door is too tiny, you may notice a gap around the perimeter of the door. Noise and scents are able to quickly pass from one room to another through this opening. You’ll also have a limited amount of privacy. Another reason why it’s critical to choose the proper interior door size is that a mismatched door might detract from the overall design and appearance of the space.

If you simply want to heat specific areas of your home, then having the proper-sized internal doors is critical to your success.

Measuring your door right

It’s critical to accurately measure your door in order to ensure that it will fit correctly when installed. Failure to do so will only result in unwelcome consequences down the road. To ensure that you are accurately measuring your door, first get some scratch paper and a writing implement before following the steps listed below:

  1. From the bottom to the top of the door you’re replacing, take measurements. From right to left, measure the width of the door. Now, take a measurement of the thickness. The thickness of the door should be around 1-3/8 inches. Locate the door jam and take its measurement
  2. Take the height and breadth of the door frame into consideration. Do not include the trim in your measurements
  3. Instead, subtract it.

Once you’ve gathered your measurements, you’ll need to increase the width measurement by 2 inches and the height measurement by 2 inches.

There’s no difference between utilizing a pre-hung door and not, and you should always do this when installing a door. For example, if your measures are 32 x 34, they will be 34 x 36 after the transformation.

A final thought

The standard inside door width, height, and thickness are all determined by the manufacturer. In most cases, doors are at least 80 inches tall, but they can be as tall as 96 inches in other cases. Similarly, interior doors range in width from 24 to 36 inches and are 1-3/8 inches thick. The fact that most furniture will not fit through a doorway that is less than 30 inches wide should not be overlooked. Give yourself at least 34 inches of clearance to be on the safe side. You’ll spare yourself a lot of heartache in the long run.

  • This involves increasing the height and breadth by two inches in order to achieve more precision.
  • In addition to this, you’ll want to take into account the degree of humidity in your geographic location as well.
  • High humidity causes panel doors to warp less than flush doors, hence panel doors are preferable in this situation.
  • Finally, you’ll need to determine whether to get a pre-hung door or a slab door for your new home.
  • Pre-hung doors will save you the time and effort of having to construct the door’s frame from scratch.
  • It is possible to assure that a slab door will fit exactly and snugly with slab doors.
  • Thomas Luttrell has been in the homebuilding industry since 2002, specializing in the construction and renovation of residential properties.
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Custom Size Doors (Thickness, Width, and Height) : Sun Mountain Door

Did you know that Sun Mountain can produce doors in a variety of bespoke sizes, including custom thicknesses, widths, and heights, as well? Custom sizes are frequently required to fit existing door openings in upmarket renovation projects, or to suit a specific design or application need in a new luxury home construction project. Thickness While the bulk of the doors we create are 1-3/4″ thick, we also make doors that are 2-1/4″, 2-1/2″, and even 3″ thick in some cases. A laminated veneer lumber (LVL) core sandwiched between 1/8″ thick veneers and solid wood edge caps is typically used in the construction of the stiles and rails (or structural frame) of these doors to ensure that they do not warp when exposed to moisture.

With the two wood layers, we alternate their grain directions, resulting in naturally occurring resistance to bending and cupping.

Sun Mountain determines the right hinge size and count, as well as the design of the door jamb, to ensure that thick doors are operated safely and properly.

To offer additional support for large doors, hinges are inserted through the door frame and into the stud wall, as well as through the door frame and into the stud wall.

The following widths are available: 1/6, 2/0, 2/4, 2/6, 2/8, and 3/0.

We may make minor adjustments (additions or subtractions) to conventional width widths, as little as 1 inch, to accommodate existing openings or specific requirements.

In our firm showroom at the San Francisco Design Center, for example, we have a 6′ wide barn door on exhibit that is pictured below.

However, we can also create bespoke heights upon request.

We can also build doors with a modest height, such as the 3/0 height door illustrated below, or doors with a very tall height.

For example, we are frequently contacted by customers that want 9′ high doors. This is the highest door that Sun Mountain has ever constructed, standing at 20 feet in height. To receive a free quote, please call us at 888.786.6861 or visit our website at

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