Ergonomics · Office
Office Chair Seat Height
Adjustable seat height range for a task chair, measured floor to seat surface.
Description
Seat height should allow feet to rest flat on the floor with knees at roughly a right angle, while keeping forearms level with the desk surface.
Sources
- BIFMA / ANSI ergonomic guidelines
Tags
Values
Adjustable rangeRange
406–533 mm16–21 in
Related dimensions
711–762 mm
28–30 in
Standard Desk Height
ErgonomicsFixed-height work surface for seated desk work, matched to an average-height adult.
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580–710 mm
23–28 in
Office Chair Footprint (Width × Depth)
ErgonomicsPlan footprint of a task chair — including armrests and casters — while seated at the desk.
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760 mm
30 in
Office Desk & Chair Clearance (Space Behind the Chair)
ErgonomicsClear floor space required behind a desk chair to roll back, stand up comfortably, and — if needed — let someone pass.
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