Stand-up workstation adjusts in height from 35 to 49. Designed for stand-up computer work. Keyboard tray extends 9-3/4 and retracts under the worksurface when not in use. Keyboard tray holds up to 25 lb. The desktop holds up to 100 lb. Design includes a heavy-duty steel frame with powder-coat finish, 3/4 compressed wood shelves, and snap-on cable management side covers. Worksurface measures 29-1/2 wide x 19-3/4 deep, and keyboard shelf is 22-3/4 wide x 13-1/2 deep. Roll stand-up workstation easily on four casters (two locking).