Dimensions - Overall Dimensions: 40.75"W x 29"D x 31"H, Main glass top: 35.25"W x 23.5"D x 6mm with 23.5 wide slide up pencil ledge Adjustable Height Desk - Adjustable angle top with dual tilt design: sitting desk: 31H with a 68 Degree tilt/standing desk: 39.5H with a 22 Degree tilt Multi-Purpose - Can be used as a writing, drafting, or stand up desk, or a light table with additional purchase of light table support Bars (#10049, sold separately) Four side trays for extra storage.Rear Crossbars for Rigidity Stable Office Desk - (4) floor levelers for stability