Most commercial gas range manufacturers state that their product is for use on a non-combustible floor. If a restaurant is planned to be installed in a building with an existing wood-framed floor, how can this requirement be handled? Assuming that the range is installed on legs, would the addition of a sheet of stainless steel under the range meet this requirement? Or could the legs be removed and a non-combustible (steel-framed) curb be used? Would the addition of ceramic or quarry tile be acceptable?