These ramps are constructed of 100% aircraft aluminum. The two 16” x 44” panels deliver a loading capacity of 1000lbs each or 2000lbs total...enough to handle the heaviest ATVs and UTVs on the market! The Trailer Ramps feature 5 inch rung spacing and includes gripping ridges on the rungs to insure non-slip loading. They also include plastic-coated fingers and security straps that provide positive attachment to the trailer. The Trailer Ramps weigh only 15lbs and ship by UPS.