Architecture · Doors & Openings
Interior Door Clear Width
Minimum clear opening width for a standard interior passage door.
Description
The clear width of a door opening is measured between the face of the door (open to 90°) and the door stop, not the nominal leaf size. An 813 mm (32 in) clear opening is the widely referenced minimum for general accessibility, and is typically achieved with a 914 mm (36 in) nominal door leaf.
Notes
- Bathroom and closet doors are sometimes narrower (762 mm / 30 in leaf) but this reduces accessibility.
- Always verify clear width, not nominal leaf width, against accessibility codes.
Sources
- ICC A117.1
- ADA Standards for Accessible Design
- Architectural Graphic Standards
Tags
Values
Nominal leaf widthStandard
914 mm36 in
Minimum clear widthMinimum
813 mm32 in
Comfortable clear widthRecommended
865 mm34 in
Related dimensions
813 mm
32 in
Accessible Door Clear Width
AccessibilityMinimum clear width of an accessible doorway, measured with the door open 90°.
dooraccessibilityclearance
915 mm
36 in
Hallway / Corridor Width
ArchitectureClear width of interior corridors for residential and commercial circulation.
corridorhallwaycirculation