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Ergonomic Dimensions

Standard ergonomic dimensions for architectural design

Element	Standard	Min	Notes
Single door width	900 mm	800 mm	Standard entry door
Double door width	1,800 mm	1,500 mm	Double door
Door height	2,100 mm	2,000 mm	Standard door height
Wheelchair accessible	900 mm	900 mm	Wheelchair accessible minimum
Fire door (single)	900 mm	900 mm	Emergency exit minimum width
Door handle height	900~1,100 mm	800 mm	Floor to handle

Element	Standard	Min	Notes
Residential corridor	1,200 mm	1,000 mm	Residential corridor
Public corridor	1,800 mm	1,500 mm	Public facility corridor
Hospital corridor	2,400 mm	1,800 mm	Considers bed transport
Two-way wheelchair	1,800 mm	1,500 mm	Wheelchair two-way passing
One-way wheelchair	1,200 mm	900 mm	Wheelchair one-way
Ceiling height	2,400 mm	2,100 mm	Corridor ceiling height

Element	Standard	Min	Notes
Stair width (residential)	1,200 mm	900 mm	Residential stair
Stair width (public)	1,500 mm	1,200 mm	Public facility
Handrail height	900 mm	850 mm	Floor to top of handrail
Headroom	2,200 mm	2,100 mm	Headroom above stairs
Landing depth	1,200 mm	Equal to stair width	Landing depth

Element	Standard	Min	Notes
Toilet room width	1,000 mm	900 mm	Toilet stall width
Toilet room depth	1,500 mm	1,200 mm	Toilet stall depth
Accessible toilet	1,600×2,000	1,400×1,800	Accessible toilet
Lavatory height	800 mm	750 mm	Top of lavatory
Shower size	900×900	800×800	Shower booth
Mirror bottom	1,000 mm	900 mm	Floor to bottom of mirror

Element	Standard	Min	Notes
Counter height	850 mm	800 mm	Counter height
Counter depth	600 mm	550 mm	Counter depth
Upper cabinet bottom	1,400 mm	1,350 mm	Upper cabinet bottom height
Work triangle max	6,000 mm	-	Fridge-sink-range total
Passage width	1,200 mm	900 mm	Kitchen passage
Two-cook passage	1,500 mm	1,200 mm	Two-cook passage

Element	Standard	Min	Notes
Single bed	1,000×2,000	900×1,900	Single bed
Double bed	1,400×2,000	1,350×1,900	Double bed
Queen bed	1,500×2,000	-	Queen bed
King bed	1,800×2,000	-	King bed
Bedside clearance	600 mm	450 mm	Bedside clearance
Closet depth	600 mm	550 mm	Closet depth
Min bedroom size	9 m²	6.5 m²	Min bedroom area (KR)

Element	Standard	Min	Notes
Standard parking	2,500×5,000	2,300×5,000	Standard parking (KR)
Compact parking	2,300×4,500	2,000×4,500	Compact parking
Accessible parking	3,300×5,000	3,300×5,000	Accessible parking
One-way aisle	5,000 mm	3,500 mm	One-way aisle
Two-way aisle	6,000 mm	5,500 mm	Two-way aisle
Ceiling height	2,700 mm	2,300 mm	Underground parking clearance

Element	Standard	Min	Notes
Wheelchair turning	1,500×1,500	1,400×1,400	Wheelchair turning space
Ramp slope	1:15	1:12	Ramp slope
Ramp width	1,500 mm	1,200 mm	Ramp clear width
Elevator min	1,600×1,350	1,100×1,350	Accessible elevator
Switch height	1,000 mm	800 mm	Switch/outlet height
Counter max height	850 mm	-	Accessible counter