A steep ramp slope produces difficulties for wheelchair users, especially those with a lack of upper body strength to propel themselves up. Similarly, a steep gradient will make it difficult for a caregiver to push a hospital bed or wheelchair user safely.

You can use a gradient between 1:12 and 1:20, if the ramp length remains within the permitted lengths.

Please refer to the diagram below for the maximum ramp lengths corresponding to these gradients (see Doc M. Vol 2, Page 19, Table 1 & Diagram 3  / BS8300-1, Page 40).

Diagram – The relationship of ramp gradient to the going of a flight

Diagram sources:

• Approved Document K, Protection from falling, collisions and impact (Section 2: Ramps, Page 18).

• Approved Document M, Access to and use of buildings, Volume 2 – buildings other than dwellings (Section 1, Page 19).

Widths Of Ramps

The width of a ramp is as important as its gradient.

The minimum width required for ramps leading to non-residential buildings, such as commercial or public structures, is 1500mm, as specified in Approved Document M, Volume 2—Buildings Other Than Dwellings.

In contrast, the minimum width of ramps leading to residential buildings is 900mm, as outlined in Approved Document M, Volume 1 - Dwellings.

Our modular ramp system is available in various widths. A larger platforms can accommodate foot traffic in both directions and provide sufficient turning space for transport beds and powered wheelchairs/scooters.

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