Ramps used in and outside the home are usually made of treated wood. Their structural details are shown below. Outside, concrete or metal ramps may be more suitable than wood ramps. Before you install ramps of any kind, determine the exact needs of the people who will use them. Landings Landings are necessary at the top and bottom of ramps, and at intermediate levels where a ramp changes direction or rises higher than 3'.
Intermediate landings provide rest areas and adequate maneuvering space for turns.
Landings should be at least 5' long at all of these locations. If you install ramps, make sure to provide handrails on both sides, for the same reasons they are needed on stairways. Ramp Surfaces Since an inclined surface creates an increased slipping hazard, you should provide a non-slip surface on all ramps. For exterior wooden ramps, you can apply paint mixed with sand. You can also use rolled roofing material.