HORIZONTAL LUMBER TRANSPORT CART Lumber Cart Has Telescopic Posts To Help Retain Cargo During Transport. Versatile steel lumber cart helps to move lumber, sheets of plywood and pipes with ease. Top deck features four 12"H telescopic posts 2 on each side that can be easily raised to help prevent materials from falling off. Posts can also be lowered to allow sheets of plywood or sheetrock to be stored flat. Top deck measures 63-12"L x 29"W x 41-"H and lower deck measures 42"L x 29"W x 10-"H. Cart is constructed of heavy duty tubular steel framing and steel mesh base with a durable enamel finish. Lumber truck maneuvers easily on two 8" center-mounted rigid and four 6" polyurethane casters, and caster arrangement allows truck to turn on its own radius.