These external Bifold Doors, factory finished in Anthracite Grey (RAL7016M), feature a preservative-treated Engineered timber core, which is also treated with a water-repellent system for long-term stability and durability. The doors come factory-glazed with high performance LowE DG Units achieving a whole product U Value (thermal insulation) of 1.5 W/m2K. This item is delivered direct to you from one of our suppliers, please see our Terms & Conditions for more details.
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