ApexDesk Elite Series 71" W Electric Height Adjustable Standing Desk (Memory Controller, 71" Walnut Top, Black Frame) Height adjustable from 29" to 48" at 1.3/second Enhanced stablility w/ one-piece fixed steel beam Dual motors with 225-lb capacity Easy assembly -- less than 60 minutes for most users The ergo-shaped work surface measures 1"x 71"x 33" with narrowest mid section 29" deep. The top is made of MDF with scratch-resistant laminate. Its beveled edges give the top a sophisticated and streamlined look