Our #1720 2 - Drawer File Cabinet 22.5W x 28D x 30H, #1724 3 - Drawer File Cabinet 22.5W x 28D x 43H, and #1728 4 - Drawer File Cabinet 22.5W x 28D x 56H are all the same except for the number of drawers. All have full extension side mount drawer glides that allow to easily reach the back of the drawer.