
The common width-height relations used: Width = 0.4 – 0.6 Height Height = (width +1.2)m
General sizes used:
a) Residential
External door – 1.0 x 2.0 to 1.1 x 2.0 m
Internal door – 0.9 x 2.0 to 1.0 x 2.0 m
Bath & WC – 0.7 X 2.0 to 0.8 x 2.0 m
Garages for cars – 2.25 x 2.25 m to 2.40 x 2.25 m
b) Public 1.2 x 2.0 m or 1.2 x 2.1 m or 1.2 x 2.25