Seller: grreefkeeper (424) 100%, Location: Grand Rapids, Michigan, Ships to: US & many other countries, Item: 112199473716 Up for sale is one antique floor grate that has an outside dimension of 16.5" x 5.25". It will fit an opening of 15" x 4". The is a number 4 and 15 stamped on the underside. Please see descriptions/pictures for details. Thanks for looking! Condition: Structurally sturdy. It does have paint chipping and some surface rust.