Offering maximum flexibility for you to finish in whatever colour is required, this unfinished external Bifold Doorset features a preservative-treated, water-repellent Engineered timber core. The factory-fitted high performance LowE DG Units mean that this doorset exceeds the thermal insulation requirements of Building Regulations.
BS EN 12150. BS EN 12600.
Part L. Part F. BS 14351. BS EN 12150. BS EN 12600.