Risers have a 1 1/2″ tall backstop. Riser will add 18″ overall height to the workbench. May be double stacked. Wiring kit included and installed.
Tennsco 72″W x 15″D x 18″H Prewired Electric Riser with End Supports for Workbench, Sand
Prewired Electric Riser with End Supports for Workbench, Steel

