Under Trays for Fire PitsOur Under Trays are used to protected surfaces from radiant heat from fire pits or to provide a stable surface to place your fire pit on. The trays are heavy duty, powder coated black made from 3mm thick steel. Fill with river sand and add rocks or pebbles for decoration. (do not use porous rocks) Key Features Protects surfaces from heat damage Provides stability for when placing fire pit on soft ground Stops rust run off on tiles etc Available in 3