The Metal Lumber Storage Rack has been creatively designed to safely and efficiently store different sized lumber in any type of facility. The storage rack is constructed from welded steel and is backed by a lifetime warranty from its manufacturer Diversified Woodcrafts. The four sturdy upright frames that hold the shelves are securely welded to the steel frame. There are five shelves in total: 4 - 20 inch deep shelves as well as 1 - 38" deep shelf. Each shelf has a maximum weight capacity of 400 lbs. The overall measurements of this Metal Lumber Storage Rack are as follows: 42" D x 8' H x 12' H. The lumber rack is finished with a gray primer application. The oversize shipping costs for the Diversified Woodcrafts Metal Lumber Storage Rack are $151.45