Heras fencing
Heras Fence Base Block
Heras fencing is a design of temporary fencing intended for use on construction sites. It consists of individual panels approximately 3.5 metres (11 ft) wide and 2 metres (6 ft 7 in) tall. Each panel has two poles: one long pole which goes from one of the bottom corners, up the side, bends around to follow the top, then bends to follow the other side to the other bottom corner; & one pole which runs horizontally along the bottom. The ends of the long pole continue to be slotted into concrete blocks with holes in them. In the middle of the panel is a metal grid.
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