Classic cantilevered leg design. MODEL SHAPE HEIGHT DESK CT13 - Standard with 1 Wire Ex Rectangle 22''-29'' Adj 24''x36'' CT14 - Standard with 1 Wire Ex Rectangle 22''-29'' Adj 24''x48'' CT16 - Standard with 2 Wire Ex Rectangle 22''-29'' Adj 24''x60'' CT17 - Standard with 2 Wire Ex Rectangle 22''-29'' Adj 24''x72'' CT36 - Standard with 1 Wire Ex Rectangle 22''-29'' Adj 30''x36'' CT42 - Riser Trapezoid 22''-29'' Adj 21''x42'' CT48 - Standard with 1 Wire Ex Rectangle 22''-29'' Adj 30''x48'' CT60- Standard with 2 Wire Exc Rectangle 22''-29'' Adj 30''x60'' CT72- Standard with 2 Wire Exc Rectangle 22''-29'' Adj 30''x72'' CT76- Standard with 2 Wire Exc Half Hexagon 22''-29'' Adj 30''x72'' CT80 - Standard with 2 Wire Ex Trapezoid 22''-29'' Adj 40''x80'' CT95 - Standard with 2 Wire Ex Trapezoid 22''-29'' Adj 48''x96''OPTIONSPermaTuff Edge3'' Casters00KB Keyboard Tray00GT Cable Grommet