This unfinished Oak Veneered Internal FD60 Fire Door Lining is ready to oil or wax to suit your choice of finish. These Linings are available in 60mm x 108mm, or 60mm x 133mm section sizes, suitable for any imperial or metric internal door. The benefit of taking an unfinished product, is that you can decorate them to match the finish of you unfinished internal oak doors. Trenched with 2no. 15mm x 4mm grooves for intumescents and supplied with loose stop.