Commercial Grade Mobile Workstation. Worksurface Dimensions: 24 W X 29 D X 1 Thick. Shelf Dimensions:24 W X 18 D X 1 Thick. 2 Diameter Sturdy Steel Tubing Base. Work Surface and Monitor Shelf Heights are Adjustable in 1 increments up to 34 high . Four Casters for Mobility with 2 Locking for Stability .