Fireproof and waterproof: : Fireproof mat is made of three layered non-itchy aluminum foil silicone coated fiberglass which stands up the temperature up to 2000. 36" Diameter Round: : This 36 inch fire resistant mat features a versatile circular shape designed to fit underneath a propane fire pit. bonfire pit. burn barrel. fire pit ring. propane grill. charcoal BBQ grill. stainless steel grill. and keep at least 3 inches space between the fire pit and mat. Foldable. Lightweight & Portable Fire Mat: : Our fire mat for wood deck could be easily folded into Small Size for space saving storage. Meanwhile. the Lightweight design makes this fireproof deck mat suitable for many activities through the whole year. NOTICE: : The 36'' fire pit mat is suitable for small/ portable/ Medium/ big/ tall fire pit grills and smokers.Please keep the REFLECTIVE LAYER (Aluminized Layer) side up. when placing our FIRE MAT under fire pit on deck for patio or lawn protection.