Wide opening offers more leg room and accommodates oversized chairs. Frame is 1-1/8 inch, 18‑gauge steel, welded to 3/4 inch, 18‑gauge steel braces and connects directly to an 18 x 24 inch, 20 x 26 inch A+, or 20 x 36 inch ADA compliant desktop for optimum support. Available with an optional wire book rack constructed of 4‑gauge wire finished in rust resistant chrome finish. All laminate tops feature your choice of black T‑Mold edge, or black LockEdge. Black frame, chrome‑plated 1 inch 18‑gauge tubular steel unswaged leg inserts adjust in 1 inch intervals from 22‑1/2 to 31‑1/2 inches, or 22‑1/2 to 33‑1/2 inches for the larger A+ size and ADA compliant sizes. On desks without a book rack, add the optional Classroom Select Technology Basket as a simple storage solution for up to 14 inch laptops or tablets. Nylon leveling glides reduce noise. Please order in carton quantities of 2.