Sound absorption mats under each shelf assure "library quiet" performanceRuggedly constructed from commercial grade cold rolled steel with heavy-duty 16-gauge, 1" round tube steel frames. Components are precisely made to eliminate any sharp edges. Curved handles provide comfort.Includes four 16-gauge steel flat shelves with a 14" depth, ideal for transporting oversized books or parcels. Clearance from bottom shelf to lower middle shelf is 11 3/4". Remaining clearance is 11 5/8". Includes 5" ball-bearing swivel casters for easy, quiet maneuvering.Caster assembly required.Ships via Truck. FOB: ILHandle grips (keyword: handle pads), available and sold separately, are made of padded foam to provide comfortable, non-slip cushioning for your hands.Optional book truck bumpers (keyword: bumpers) slip onto the legs above casters to prevent trucks from bumping against furniture or walls.Finished with durable baked enamel paint available in 9 colors: -01 black, -02 blue, -08 desert sand, -18 red, -48 putty, -53 burgundy, -55 navy, -91 medium grey, -134 dark greenTo view finish choices, simply click on the View Swatches button located above.Overall dimensions: 52 1/4H x 33 3/4W x 15"D