"This steel yard ramp is designed for loading and unloading a truck, trailer, or railcar when dock space isn't available. Manufactured from durable steel, this yard ramp has a 22,000 lb. weight capacity and measures 37' L x 81-1/2"" W. The surface of the ramp includes a middle diamond plated strip that is surrounded by serrated steel grating, which allows for snow, dirt, and debris to fall through, preventing dangerous build-up on the ramp (please note, the grated surface of this ramp is not designed for forklift turning maneuvers). Additional safety features include 8"" tall side rails on either side to prevent forklifts from driving over the edges, and two 60"" safety chains to hold the ramp secure to the loading surface. The chains can be attached to a semi-truck trailer's ICC bumper to prevent the ramp from kicking out."