Seller: ladybug007 (26,742) 99.1%, Location: Newport, Vermont, Ships to: US, Item: 142188745838 This is a nice OLD floor grill that is rectangular in shape . The outside measurement of the grille measures 17" long by 14" wide. The grille needs a floor opening of 15" long by 12" wide. In very good condition.. has no cracks, no breaks. The top is made of cast iron and the louvers on the bottom are made of tin.