Gator Base is equivalent to 286 pounds of crushed stone for a foundation. Gator Base is manufactured to evacuate the water through channels, using lightweight high-density polypropylene and is environment-friendly and is 100% recyclable. It is designed with a tongue and groove system and is easy to install. Gator Base provides an excellent foundation, while ensuring the load transfer with its Lock-N-Go system and being the perfect support to receive the Gator Spacer, Gator Block glue and porcelain tiles. Gator Base is environmentally friendly, will not degrade in the ground and engineered to return water to the native soil via the evacuation channels incorporated into each panel. It will never leach chemicals or degrade in the native soil for over 100 years. Available 10 units per package.