This quality Studio Rack Cabinet is built of 5/8 thick furniture grade black oak laminate. Available in various rack sizes, this cabinet is 15.5 deep and 19 wide. The rack rails are constructed of 3.2mm heavy-duty cold rolled steel. 4U; 15.5" deep 19" Studio Rack Cabinet 5/8" Thick MDF Furniture Grade Black Oak Laminate Rack Rails Constructed of 3.2mm Heavy-Duty Cold Rolled Steel Gator Item No. GR-STUDIO-4U Get yours today; with the security of our many decades of experience and Sam Ash Direct efficient order processing, your satisfaction is guaranteed!