I forgot to measure this upon arrival - my range has insulation on sides, back and top. This would not be enough to cover all four, luckily I just needed to replace the top due to mouse activity, and doubled it up, which used it all up. Easy to cut with scissors. Takes a little trial and error to get everything opened up, especially in a small galley kitchen. Take a picture of all wired parts in as soon as open, in case a wire pulls out. Also inspect wires for damage and tape while you’re in there.