The typical standard door height in most American households is 80 inches, or 6 feet 7 inches. Most interior doors are between 24 and 36 inches wide, and the most common size is 30 inches wide.
Standard Interior Door Height
It needs to be a minimum of 80 inches (although some codes allow for 78 inch doors). Doors that have a height of 80 inches are 6 foot, 8 inches in measurement, which is the reason standard interior doors are known as “6/8 doors.” A 78 inch door would be called a 6/6 door.
Typically, main entry doors measure 36 inches wide by around 80 inches high. Depth can vary depending on material. However, you can have doors that are much taller.
There are a few different standard sizes for front doors, but the most common is 36 inches wide by 80 inches tall. Some doors can be as narrow as 30 inches and as tall as 96 inches, though, so it's important to find the exact measurements.
The following are some of the most common standard interior door widths: The standard door width for interior doors is 32 inches. Described as a “2/8” door, this 2-foot 8-inch-wide door is the minimum recommended width required for a passage door.
Typically, the standard exterior door is 36 inches wide, while the standard interior door size is 32 inches wide.
The term “interior door” usually means doors that lead from one room to another or to a room off a hallway. In modern homes, standard dimensions are 80 inches (6 feet, 8 inches) tall, 32 inches wide, and 1 3/8 inches thick. As with anything in life, though, it can vary.
For the average person, a 30”-wide door will be adequate (though a bit small). However, if you want your home to be accessible to those with disabilities, then a door width of 36” is considered the minimum width.
For single doors and doors with sidelites, measure only the door slab. For Double Doors, measure the width of the two door slabs together. Example: If your door measures 35-7/8" wide and 79-1/2" tall, you'll be looking for a 36" x 80" door.
Full-height doors (sometimes referred to as floor-to-ceiling doors) provide a grandiose feature and span the whole height of the room.
Standard entry door measurements: Height: 80 inches (6 feet 8 inches) Thickness: 1 3/4 inches. Width: 36 inches standard (30 and 32inches also available)
Standard Door Frame Size
The average measurement of 36 by 80 inches refers to the door panel itself, not including the frame. The frame extends beyond the panel, and is installed into the rough opening. The rough opening should be at least ¾ inch wider and ? inch taller than the door frame.
If you're upgrading the doors in your home, you should make sure you have the window head heights matching the top of the door frame and not simply the door. This will help to ensure the interior trim within the home also aligns for that ideal visual appeal.
If the house has a 10' ceiling, then the tops of your windows and doors should be at 8'. A 6'8” door in a 10' ceiling leaves 3'4” a bit clumsy – not a good look.
Standard widths include 18, 20, 24, 28, 30, 32 and 36 inches. Standard heights include 80, 84 and 96 inches. Customized sizes are available in a wide range of different designs. To measure a prehung door, remove the interior casing and measure the opening.
When replacing an existing door with a pre-hung door, select a door that has the same dimensions as the existing one. Standard widths for interior doors are 24, 28, 30, 32 and 36 inches, while the height must be a minimum of 80 inches. For a slab door, measure the width, height and thickness of the door.
Check the door fit. Ideally, there should be a gap of about 1/8 inch at the top and along each side, and about 3/8 inch at the bottom. Use cardboard spacers or folded matchbooks (four thicknesses equals about 1/16 inch) along with shims underneath to maintain the spacing.
Room codes and regulations may vary a little from state to state, but for the most part, bedrooms follow these guidelines. For a room to count as a true bedroom, it must have at least 70 square feet of floor space with a minimum of 7 feet in one direction.
The standard bathroom door size should have a clear opening of 32 inches and a door width of 34 inches. The 34-inch clear width is considered the universal design for bathroom doors. The smallest allowable opening is 24 inches but this is only allowed if existing walls prohibit any type of modifications.
Some production home builders offer an upgrade for home buyers to have 8 foot tall doors in their home instead of the standard 6 foot 8 inch doors. Builders sometimes install 8 foot tall doors just downstairs in homes, but some higher end builders will install them both upstairs and downstairs.
A prehung door comes with the door and hinges already installed in a frame. The frame includes the door jambs, or legs (the vertical elements), as well as the header that forms the top of the frame and connects the jambs. To install the door, you install the entire assembly.
Framing rough opening sizes are really quite simple. Just add 2″ to the width of the actual door size. You should add 2-1/2″ to the height of the actual door. This will give you room to space the door frame off of the sub-floor.
Q: How are doors measured? A: Doors are measured in feet and inches as follows: a standard 36" wide x 80" height x 1-3/4" thick door is called a 3/0 ("three oh", which means 3 feet, 0 inches) x 6/8 ("six eight", which means 6 feet, 8 inches) x 1-3/4".
Standard door heights are 6/6 (78”) and 6/8 (80”). In addition, special sizes can sometimes be custom ordered. A 36” x 80” pre-hung single door will use a rough opening of approximately 38-1/2” x 82-1/4” to fit.