This is a 36 in. X 36 in. Wall Hearth Pad with Standard Edge. It has been constructed with the latest and highest quality Latex Modified Cements and Grouts are used in construction to ensure that there are no grout cracks. This special grout is stain resistant making this hearth pad maintenance free! Fireproof tiles coupled with the completely fireproof construction allows this pad to function as both a flame arrestor and a thermal barrier. All hearth pads are tested and listed by Omni Test Laboratories to meet or exceed UL safety standards. Please size your hearth pad appropriately to meet local Safety requirements of eight inches overhang to either side of a woodstove and 16” in front of a woodstove. Please consult your stove manual or contact us at info@outdoorroomliving.com if you have any questions.