The Riser Shelf provides greater stability and privacy for your operator when you mount it to the RTW Table worksurface. Laminate shelf is 18” deep and 20” tall. Approx 17" of usable space under shelf support, Constructed of 18 gauge steel. Weight capacity is 200 lbs. Shelf surface color is White for standard laminate. Standard shelf color is Blue. Other colors available include Grey, Almond and White to match the color of your RTW Table.