These threshold ramps are ADA-compliant with the 1:12 slope ratios. Featuring solid foam construction with a durable grey polyurethane outer coating, these threshold ramps are extremely lightweight, while maintaining a high weight capacity. Each ramp can accommodate up to 800 lbs. The grey rubberized non-slip coating provides maximum traction for both mobility aids and foot traffic in all weather conditions. This slip-resistant covering will not scratch or mar any floor surface.