Here"s the ultimate set of ramps for both performance and convenience, The arched design will take care of low clearance needs - the folding feature provides storage in the smallest space of any loading ramp on the market, Size:, 12"" x 89"", Stacked Thickness: 13"", Rungs/Panel: 17, Rung Length: 10"", Rung Spacing: 4"", Dimensions: 52"" x 13"" x 12"", SKU: GRDY074