Useful dimensions for general design Drawing
Height Dimensions Normal heel height
26mm
Vertical Space for foot
100mm
Stair Riser
200mm
Ladder Rung Space
300mm
Max Step height
380-400mm
W.C height
400mm
Stool height
650mm
Knee Clearance (min)
660mm
Table height
700mm-740mm
Panic Bar
840mm
Hand Rail- stairs
860mm
Work Bench
920mm -965mm
Hand Rails
920mm -1065mm
Door knobs
960mm
Counter
1020mm -1090mm
Telephone dial- Men sitting
1070mm
Push Bar
1150mm
Wall Switch
1220mm
Grab Bars
1380mm
Telephone dial-Men Standing
1450mm
Instrument Dials-Men Standing
1450mm
Mirror Centreline
1550mm
CatWalk ceiling (min)
1600mm
Highest Shelf
1830mm
Tel booth door
1930mm
Door height (min)
1980mm
Ceiling height (min)
2040mm
Std. Door height
2040mm-2100mm
Width Dimensions Stair Tread Width-Min
280mm
Seat Width -Min
450mm
Seat Depth -Min
400mm
Internal door width =Min -Clearance
750mm
Lift door width =Min -Clearance
800mm
External door width=Min -Clearance
800mm
Gangway width -One man occasional
760mm
Clearance Round Main equipment
1000mm
Gangway width -One man frequent use
1070mm
Main Gangways
1830mm
Clearance Round Main equipment
1000mm
Clearance Round Main equipment
1000mm
Corridor Width- Unobstructed
1200mm
Corridor WidthAllowing Wheelchair Passing
1800mm
Space Requiirement