Garage mats are easy to install. Most feature interlocking designs that allow the user to join the mosaic pieces by hand without tools. Some interlocking mats may require a simple hand tool, such as a hand tool a rubber mallet to connect the parts.  This makes it relatively easy to lay an entire floor in just a few hours. Peel-and-stick mats also offer tool-free installation. Simply remove the backing and glue each tile to the floor.