Stronger than oak, harder than maple, and built to last a second lifetime. The high-performance surface is made from engineered recycled materials designed to optimize your space and surface requirements.. Essential Desktop Size. 111.5 cm x 74 cm x 2 cm. 44" x 29" x 0.8". Pro Desktop Size. 111.5 cm x 74 cm x 2 cm. 44" x 29" x 0.8". XL Desktop Size. 140 cm x 74 cm x 2 cm. 55" x 29" x 0.8". Essential Fixed Height Frame Height65 cm25.6". XL/Pro Height Adjustable Frame Range. 65 cm - 117.5 cm. 25.6" - 46.3"