1008.1. The minimum width of each door opening shall be sufficient for the occupant load thereof and shall provide a clear width of not less than 32 inches (813 mm).
The standard width for bedroom doors tends to float around 30 inches. It's wide enough for your queen-size bed to pass through but not so wide that you feel like you're opening the gates to a castle every night.
Interior doors shall be not less than 24 inches (6096 mm) in width and 6 feet, 6 inches (1524 mm) in height. Exception: Doors to areas less than 10 square feet of floor area.
The most common interior door widths are 2-0, 2-4, 2-6, 2-8 and 3-0, which translates to 24, 28, 30, 32, and 36 inches wide.
Closet doors do not need to follow the criteria set by the IRC. Some older closet doors are as narrow as 18 inches, but in modern homes they are 30 inches in width. The standard interior door width is 28 to 32 inches.
Standard Size for Interior Doors
The height for all passage doors must be a minimum of 80 inches and the standard width sizes for interior doors are 24”, 28”, 30”, 32” and 36”. The minimum recommended door width to allow persons with disabilities' to pass through is 36 inches.
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.
The International Residential Building Code requires a bedroom to be a minimum of 70 square feet, with no one dimension being less than 7 feet.
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.
For reference, standard interior door widths range from 24"-36" (finished opening). While a standard door height is 80" (finished opening). The difference between a rough opening and finished opening is usually 2-3 inches.
Made to measure internal doors come in a number of different sizes. Small internal doors will typically be 762mm x 1981mm, while large internal doors can be as big as 926mm x 2040mm. There are even narrow door widths that are only 457mm wide, but these are very rare.
If the gap between the door and the frame is too small, you can widen it by adjusting the hinges. To bend the hinge, place the butt end of a nail between the hinge leaves, or against the knuckle. Pull the door closed, slowly and carefully, and the nailset will force the gap to widen.
A 24" interior door is the smallest standard size and is typically used in areas with limited space. This size is common in closets, laundry, and utility rooms.
The minimum width of each door opening shall be sufficient for the occupant load thereof and shall provide a clear width of not less than 32 inches (813 mm). Clear openings of doorways with swinging doors shall be measured between the face of the door and the stop, with the door open 90 degrees (1.57 rad).
Standard door width in 2023 — Standard (and most common) interior door widths in American homes are 30, 32, 34, and 36". These width dimensions have not changed as much the height. American interior doors are usually available in increments of 2", giving you a range of typical door widths of 28", 30", 32", 34", 36".
In general, the gap beneath an interior door will be between three-quarters of an inch and half an inch. This width depends largely on the type of flooring, as door frames are generally installed when the floor is unfinished. A standard door can have varying levels of clearance over different flooring types.
Attached to the meeting edge of single or double doors, astragals are vertical components designed to seal off gaps that leak air, water, noise, light, and debris. They can also function to detain gases, smoke, or flames in the event of a fire. Last, astragals can increase the security of door locks and strikes.
There should be a 2mm or 3mm gap between the door and the frame on both sides and the top. If you do need to cut the door down to size, keep in mind that you need to cut all four sides of the door equally whenever possible to retain an accurate shape or pattern if the door is panelled.
The nomenclature of doors is as follows: the width is specified by 2 or 3 numbers that indicate the feet and inches of the door a 2-0 [written 20] is 2'-0" wide or 24" wide, a 2-6 [written 26] is 2'-6" wide or 30" wide, a 2-10 [written 210] is 2'-10" wide or 34" wide.
Here are some standard interior door sizes: Closet doors: 24 to 36 inches wide and 80 inches tall. Bathroom doors: 28 to 32 inches wide and 80 inches tall. Bedroom and office doors: 28 to 36 inches wide and 80 inches tall.
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.
This size is quite popular for residential bedrooms, offering enough room for essential furniture while still feeling cozy. In a 12x12 bedroom, you can typically fit a queen-sized bed, a nightstand on each side, and a dresser without feeling cramped.
Your pocket door can be virtually any size as long as it fits in the opening.
Generally, standard closet door widths are 24, 30, 32, and 36 inches. These widths are designed to accommodate both reach-in and sliding doors, making them versatile for different closet types. For reach-in closets, which are usually around 5 to 8 feet wide, 24-inch or 30-inch doors are commonly used.
Shower opening minimum 22” wide. Shower door must be able to open outward (inward is optional) Shower controls should be accessible without stepping into the shower spray.