Adjustable joist support comes with joist cradles for wood floor/steel joists, a wide range of joist cradles allows you to use our adjustable joist support pedestal support for any wood joist, steel structure and other applications. Pedestal supports can be set on any waterproofing membrane and any other surface to be paved, and after the initial adjustment, the ground can be leveled by adjusting the threads, even after all the pavers have been placed.