TuffBlock Instant Foundation System

The worlds easiest foundation system for decks, no concrete required. TuffBlock's are an Australian made, ultra-lightweight alternative solution to precast concrete blocks and using stirrups, digging holes, pouring concrete and waiting for it to set. Each TuffBlock weighs only 680 grams and supports up to 770 kilograms (break-tested to over 5,000 kilograms) Designed to suit metric standards, TuffBlock's will accept 35-47mm joists and bearers as well as 90 x 90mm and 100 x 100mm square posts / Ultra-lightweight concrete alternative, with each block weighing 680grams / Over 19 times lighter than tradional precast concrete blocks like DEKO block / Made in Australia / Perfect for decks, garden sheds, landings, pathways, cubby houses and more / 25 Year Manufacturer's Warranty