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The RDF-3 fixed-head adjustable decking pedestal from RynoDeck has a 200mm support base that shields below membranes from damage. It has a 126mm height extension collar allowing millimetre adjustments for height build-ups between 55mm and 95mm. This pedestal requires no shims and suits various floor joist and decking applications. Its support head has a heavy-duty locator bracket for joists up to 80mm wide. It offers height adjustments from 55mm to 95mm and works in temperatures from -30C to 120C. The polypropylene structure resists mould, algae, alkali, and bitumen and is recycled. It can bear 1000kg compression and prevents membrane punctures.. RynoDeck RDF-3 Fixed-Head Adjustable Decking Pedestal 55-95mm Black Polypropylene