The lightweight heavy-duty aluminum means you don't have to worry about maintenance and ensures the Gateway Solid Surface Portable Ramp can be used in even the harshest of weather conditions * The lightweight heavy-duty aluminum is more durable than wood allowing you to repeatedly use the ramp every day without worrying about deterioration * The one-piece design of the Gateway Solid Surface Portable Ramp means no assembly is required * All you have to do is set it in place and it's ready for use * Slip-resistant surface * Designed with a permanent extruded slip-resistant surface the Gateway Solid Surface Portable Ramp makes sure that wheels don't lose traction removing the worry of wheels slipping on the ramp * Useable size: 4'x36 x3.5 * Weight: 30 lbs * Weight capacity: 850 lbs * Usage guidelines suggest using this on heights up to 6 * Does not include the handrail