While doors are generally an afterthought in design, their size is just as important as style and material. Properly sized doors not only enhance the overall look but also ensure smooth functionality. Choosing the door size from the start helps avoid issues and high cost adjustments.
Although there are a few factors to consider when selecting a door size, most doors are available in standard sizes that will fit most rooms. Read the guide below to learn about the standard size of doors.
Contents
What’s Standard Door Size on Average?
The standard door size may differ slightly depending on the location and uses. Here are the average sizes of the door:
Standard Door Width
Doors in residential and commercial buildings typically have a width of 24 to 36 inches. Interior doors of a house usually have a width of 32 inches, while different sizes are available based on the purpose of the room. For commercial locations like offices, retail stores and public buildings with high traffic these wider doors could be necessary. The usual range of widths for commercial doors is 36 to 42 inches.
Standard Door Height
For both exterior and interior doors 80 inches or 6 feet 8 inches is the most popular standard height. This height has become the standard for doors in homes and offices. In large spaces or homes with high ceilings, 84-inch (7-feet) doors are found frequently. For a more elegant look some homes might also decide to install 96-inch (8-feet) doors. Custom applications can be made to meet specific design needs.
Standard Door Frame size
The standard size for a door frame is 80 inches by 36 inches, with the rough opening somewhat bigger at 82 by 40 inches. To guarantee suitable installation and leveling, the rough opening should be at least ¾ inch larger and ⅜ inch taller than the standard door frame. The typical size depends on the height of normal doors, the door type and the unique dimensions of your property.
Standard Door Size In feet and cm
Residential door widths typically range from 32 inches (2.67 feet or 81.28 cm) to 36 inches (3 feet or 91.44 cm). Though larger variants such as 84 inches (7 feet or 213.36 cm) and 96 inches (8 feet or 243.84 cm), are available, the standard door height is 80 inches (6.67 feet or 203.2 cm). The typical thickness of external doors is 1 3/4 inch (4.45 cm) whereas interior doors are 1 3/8 inch (3.49 cm).
Standard Door Size for Commercial Building
These doors are a little wider as compared to residential doors and they are 80-84 inches tall and 36-42 inches wide. Since it assists wheelchairs and satisfies the requirements of the Americans with Disabilities Act (ADA), 36 inches is the minimum width for commercial buildings. Commercial doors are made with durable materials and hardware to withstand regular use and meet security needs.
Door Size by Door Type
Doors can vary in size because they offer multiple purposes. Let’s take a look at the standard sizes for the most common types of doors.
Standard Interior Door Size
Interior doors link two rooms or a room and a hallway. This category has different types of doors, including bedroom doors, pocket doors, and barn doors. These interior doors are usually 80 inches tall and 1 3/8 inches thick. The standard width for interior doors ranges from 24 to 32 inches, with 28 to 32 inches being the most common size for standard rooms. However, size variations may occur due to specific needs such as closet or bathroom doors.
Standard Exterior Door Size
The Standard size of an exterior door measures 36 inches in width, 80 inches in height, and 1 3/4 inches in thickness. For residential homes, the most popular size front door is 36 inches wide. Standard door height is also 80 inches (6 feet 8 inches), while doors that are 96 or even 84 inches tall may be used in homes with higher ceilings. External doors are 1¾ inches thick which provides superior soundproofing and insulation compared to interior doors.
Standard Bedroom Door Size
A standard bedroom door is 28 to 36 inches wide and 80 inches tall. A bedroom door typically measures 32 inches wide. This width enables for easy furniture movement while providing sufficient space for everyday use. Bedroom doors in certain homes, especially older ones, may be narrower, measuring only 30 inches wide; however, in bigger homes or where accessibility is an issue, bedroom doors can be as wide as 36 inches.
Sliding Glass Door Size
Sliding glass doors allow easy access to patios, balconies, and other outside places. These doors are made to provide wide and clear views and are often larger than standard hinged doors. Sliding glass doors are typically 60 inches (5 feet), 72 inches (6 feet) or 96 inches (8 feet) wide. The average height is 80 inches and the thickness varies from 1 1/2 to 2 1/4 inches.
French Door Size
French doors are a pair of outward opening doors that are commonly used for grand entryways or to access patios. These doors are normally 60 inches wide (5 feet), with each being 30 inches wide. The standard height for French doors is 80 inches and their thickness is usually 1 3/4 inches.
Garage Door Size
Garage doors are larger than other types of doors due to the need to assist vehicles. For a single car garage the usual dimensions are 8 to 9 feet wide and 7 to 8 feet high. A double car garage is typically 16 feet wide and 7 to 8 feet high. Custom sizes are available for larger garages and specialty applications such as RVs or larger vehicles.
Closet Door Size
The standard size is 24-36 inches broad and 80 inches tall. Reach-in closets often have doors that are 24 or 30 inches wide. The sliding doors on the other hand demand more space which is why 36-inch wide doors have become popular. Custom Closet designs are ideal if you want larger closets with a modern look. The height of standard closet doors ranges from 80 to 96 inches, depending on the ceiling height in your home.
How Tall is the Average Door
The standard height of an interior and exterior door is 80 inches or 6 feet 8 inches tall. This is the standard in both commercial buildings and residential residences as specified by building codes. However, certain doors may be taller, particularly in entryways or areas with high ceilings. Taller door heights include 84 inches (7 feet) and 96 inches (8 feet).
Most interior doors are between 24 and 36 inches wide, with 30 inches being the most common size. A taller door is typically considered large and requires a separate installation technique.
How Tall is a Door Frame
The standard door frame height is typically 80 inches (6 feet 8 inches). This measurement is common in both residential and commercial constructions. Door frames can be found in a variety of heights, including 84 inches (7 feet) and 96 inches (8 feet) for taller doors. Taller doors have taller frames, while smaller doors have shorter frames. Always check the exact requirements for your project, as measurements can vary depending on local building codes and design preferences.
FAQ
What is the size of a standard door?
The normal door height for commercial buildings and residential houses is 80 inches. The typical exterior standard door width is 36 inches, whereas the average interior standard door width ranges from 28 to 32 inches.
Are most doors 32 or 36 inches?
One of the most popular front door dimensions is 36 inches wide by 80 inches tall and nearly 2 inches thick. However, not all doors will have these dimensions. Doors can be as small as 30 inches and as tall as 96 inches, with thickness dependent on the material used.
What is the standard size of door casing?
The most typically utilized door trim casing size is 2 ¼ inches in width and ½ inch thick, however these figures will frequently move higher in the ½ inch range. It is common practice to have door and window casings of the same size; there is no specific reason for this.
Are 34 inch doors standard?
Doors come in 30, 32, 34, and 36 inch standard sizes. Compared to height, these measurements did not change very much. These measurements haven’t changed all that much over time, though they frequently do now because of evolving design trends or particular needs. Most projects prefer to select the more commonly accepted widths of 32 and 36 inches, even though a 34-inch door can offer more accessibility, especially for persons using mobility assistance.
Conclusion
Knowing the standard sizes of doors is essential for ensuring that they fit well and function properly. Whether you’re picking doors for the interior or exterior doors, getting the appropriate size simplifies installation and prevents costly mistakes. As you plan your project, make sure to measure carefully and choose a door size that is appropriate for both the appearance and functionality.
If you have any questions about selecting interior and exterior doors, or if you need assistance selecting different sizes and types to enhance your space, contact Mannlee today. We’re here to provide expert help and to assist you choose the ideal door for your needs.
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