Technical Booklet H Stairs Ramps Guarding and Protection from Impact·Page 35·4.2
Ramp gradient in dwellings
Ramps in dwellings should not exceed a gradient of 1 in 12 and must be uniform throughout their length.
A ramp should have a gradient not steeper than 1 in 12 and should be uniform throughout its length. See Diagram 4.1.
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