Choose from double-sided sloped shelves with a flat top or flat bottom shelfFrames and end panels are constructed from 18-gauge steel with 1" square tubing.Includes 2 tiers of double-sided, 6 3/4"D sloped shelves. The third tier is your choice of an 18"D flat shelf located on the top or on the bottom of the book truck. Shelves are made from strong 18-gauge steel and have an 11 1/2" clearance.Ball-bearing swivel casters (2 locking) provide easy, quiet mobility. Available in your choice of 4" or 5".Caster assembly required.10-year warranty.Ships via Truck. FOB: ILFinished in long-lasting powder paint available in 8 colors: -01 black, -14 maroon, -48 putty, -104 taupe (metallic), -120 charcoal (metallic), -196 turquoise, -208 topaz, -211 cardinalTo view color choices, simply click on the View Swatches located above.Overall dimensions:BRFV336 (4" casters, flat top shelf): 42H x 37W x 18"DBRVF336 (4" casters, flat bottom shelf): 42H x 37W x 18"DBRFV336C (5" casters, flat top shelf): 43H x 37W x 18"DBRVF336C (5" casters, flat bottom shelf): 43H x 37W x 18"D