Most of our clientele install their bricks in a sand base. This allows for your campaign to continue on by removing the blank bricks and installing your engraved bricks. This form of installation is permanent and 95% of our clientele install in a sand base. The bricks cannot be removed with ease; specific equipment is required to lift out the first brick, allowing you to continue removing the blank bricks in order to replace them with your engraved bricks. Your brick area always has a "finished" look and there is no liability issue as you continue with your fundraising campaign. We do recommend using a professional masonry/contractor to install the bricks and/or tiles. For installation instructions and information please refer to The Brick Industry Association website.