LUXOR Standup-40-DW Stand Up Desk, Walnut Upper shelf measures 39.5"W x 14"D with 34" - 46"H adjustable height range. Includes all hardware and tools required for assembly. Bottom shelf measures 36.2"W x 15.8"D x 5.5"H, Height of lower and upper shelves adjust simultaneously in 1" increments. Mobile and adjustable for comfort and productivity. Overall dimensions of 39.5"W x 29"D x variable height. Durable steel frame with powder coat paint finish. Two-tiered shelf design with double laminate wood surface. Lower shelf measures 39.5"W x 16"D with 28.5" - 40.5"H adjustable height range. Meets ANSI/BIFMA standards.