Brikawood, a French company, has invented a system of interlocking wooden blocks that can be assembled into structures ranging from walls to houses. Fully recyclable, Brikawood is made for low concept construction. Claiming to be an improvement on traditional wood building methods, there are no vertical wooden beams, which prevents water rising through the structure. By insulating the space between walls with wood shavings, energy bills for the structures can be reduced by up to 90 per cent. The French firm also tested the durability of the bricks and they can withstand an earthquake of 8.5. According to a company spokesperson the blocks are cheaper than a traditional wooden frame by about €600 ($ 675) per square meter.