30" Black Cast Iron Fireplace Grate. It is ideal for both indoor and outdoor fireplaces. Measuring 30" L x 6.75" W x 15" D, this grate is compatible with coal or wood. The open design allows smaller pieces of burned wood to fall through, creating a bed of hot coals and ensuring a hotter fire. It also helps draft smoke and fumes out the chimney, enhancing air quality in your home.