The new and improved Strongboy XL Wall support, is stronger and longer. A new thicker plate now allows walls up to 300mm thick to be supported. It also features the new and patented, plate locking bar. Strongboys are used for placing between a course of brick or block walls and supported with building acrow props to enable the wall to be removed. They weigh approximately 10Kg each. Safe Working Load is - 340 Kg Maximum spacing between props - 900mm Maximum working height - 3.0m Thickness of wall supported - 300mm