Effectively protects combustible floors from hot embers that may fall out during loading. - Black steel - Insulated with 1/2" Micore® 300 that offers an R factor of 1.03 - Recommended for stoves whose dimensions do not exceed 25"D x 25"W - 76 lb (35 kg) - CSA B365 (Canada) and NFPA 211 (United States) - Design Patent [D1007009](https://certifiedcopycenter.uspto.gov/)