Solid, built out of 3/4 and 5/8 plywood. Screwed together with pocket hole screws. Built to fit a 5.5’ box F150. Measurements are 48” wide (fits between the wheel wells) 13.5” tall and 64” long Perfect for sleeping in the back of your truck under a canopy or keeping things out of sight. 2 drawers, one for each side. The left side just wasn’t in the photo.