Dining chair clearance: NKBA 32, 36, 44 and 60 inch guidelines

The National Kitchen & Bath Association (NKBA) lists 32 in of clearance behind a seated diner where nobody passes. It lists 36 in for a person to edge past and 44 in to walk past. Its access standard lists 60 in for a wheelchair. These are planning guidelines, not a building code.

Situation	Clearance from table edge to wall or obstruction	NKBA guideline
Nobody passes behind a seated diner	32 in (813 mm)	Kitchen Planning Guideline 8
Someone edges past behind	at least 36 in (914 mm)	Guideline 8a
Someone walks past behind	at least 44 in (1118 mm)	Guideline 8b
A person in a wheelchair passes behind	minimum 60 in (1524 mm)	Access Standard beside Guideline 8
Space per diner at a 30 in high table	24 in wide, 18 in deep knee space	Kitchen Planning Guideline 9a

Situation

Clearance from table edge to wall or obstruction

NKBA guideline

Nobody passes behind a seated diner

32 in (813 mm)

Kitchen Planning Guideline 8

Someone edges past behind

at least 36 in (914 mm)

Guideline 8a

Someone walks past behind

at least 44 in (1118 mm)

Guideline 8b

A person in a wheelchair passes behind

minimum 60 in (1524 mm)

Access Standard beside Guideline 8

Space per diner at a 30 in high table

24 in wide, 18 in deep knee space

Kitchen Planning Guideline 9a

"In a seating area where no traffic passes behind a seated diner, allow 32" (813 mm) of clearance from the counter/table edge to any wall or other obstruction behind the seating area."

Source: NKBA Kitchen Planning Guidelines with Access Standards (PDF), file dated Apr 28, 2022. The document notes that state or local codes may apply.

NKBA Northern California checklist

The NKBA Northern California chapter's 2021 checklist lists the same 32 in, 36 in and 44 in clearances and the same 24 in by 18 in space per diner. The 60 in wheelchair clearance appears only in the national document. Both documents come from the NKBA.

Source: NKBA Northern California 2021 Kitchen Planning Guidelines checklist (PDF).

How the calculator applies the clearances

The selected clearance is added beyond the table edge on every side that has chairs. With chairs on the long sides only, nothing is added at the ends. That layout assumes the table ends can stand close to a wall. With one long side against a wall, nothing is added on that side. The other 3 sides get the full clearance.

The 18 in knee depth is not checked. A top under 36 in wide gives 2 diners facing each other less than 18 in each.

Building codes and exits

The guidelines do not cover exits, egress paths, stair landings or rental and condo rules. The local building department decides anything that falls under a building code.