Why are they called “Interlocking” Prest® Brick?
It is the combination of the installation system, together with the ratio between the thickness and the length and width of the Prest® Brick which makes them “Interlocking” – not the shape. When installed correctly over a base designed and properly prepared for the type of application and load bearing which the installation is intended to carry, the combination of the Prest® Brick, bedding sand, edge restraint and joint sand causes them to interlock, allowing the individual pieces to work as a unified, flexible pavement.
