The LPD Lincoln Oak 3 Panel Internal Fire Door is available to buy online at BSOLPD Doors are one of the biggest manufacturers of doors in the UK, Boasting a huge range of internal and external doors at great prices its easy to see why they are market leaders. Features Brand: LPD Material: Wood Finish: Oak Finish Type: Unfinished and Veneered Wood Type: Oak Fire door: 30 minutes Core Type: Solid Engineered Core Construction: Panel Number of Panels: 3 Door Trimming Sides (mm): 3 Door Trimming Bottom (mm): 3 Door Trimming Top (mm): 3 Safety Standards: BS476 Part 22 1987 Warranty: 10 Years