The LPD Knotty Pine 4 Panel Internal Door is available to buy online at BSO LPD 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: Pine Finish Type: Unfinished Wood Type: Pine Core Type: Solid Engineered Core Construction: Panel Number of Panels: 4 Door Trimming Sides (mm): 3 Door Trimming Bottom (mm): 3 Door Trimming Top (mm): 3