Gator Base is an evolution of foundation technology, which saves you time, labor and money. It is manufactured for pedestrian applications such as: patios, pool decks, walkways, 18″ (45 cm) seating walls and fire pits, allowing you to clearly define your spaces and highlight the focal points of the dream staycation area. Designed with a tongue and groove system, GATOR BASE is easy to install. A single GATOR BASE panel is also equivalent to 130 kg (288 lb) of crushed stone, saving you a minimum of 6″ (15 cm) of additional excavation. The GATOR BASE drains water through channels and is made from lightweight, high density polypropylene. Environmentally friendly, GATOR BASE is 100% recyclable, extremely durable and GATOR BASE does not degrade in the soil when buried.