High Capacity Defender Series Walk RampsB&P Manufacturing High Capacity Defender Series Walk Ramps These ramps are designed to provide a smooth transition from the ramp to the ground. Constructed of 6000 series aluminum, fully contoured side rails add superior strength resulting in a load capacity of 4,000 lbs. Integrated welded handles added for ease of deployment and storage. Superior traction is provided by the Twin Tooth decking found on the walkway of these ramps. A necessity in