Why did we mold our modular interlocking bricks to be trapezoidal in shape? This is a deviation from the traditional rectangular shaped bricks. Because by doing so, the design creates lateral or side locks similar to a tongue and groove, thereby locking the bricks on both sides. The interlocking feature is now complete. The bricks don't just lock brick onto brick but brick along side brick. The best brick design to ensure structural integrity that would protect our homes against intense wind loads from typhoons or shaking from earth-quakes. #wienerbergerag #wienerberger #legobuildersinc #brickmakerinstaller