The THERMAN range of door blanks has been developed to deliver reliable fire performance and enhanced thermal efficiency for high-performance commercial and residential interiors. Certified to exceed 30 minutes fire resistance when tested to both UK National (BS 476-22) and European (BS EN 1634-1) standards, including testing in both opening directions. THERMAN supports safe and compliant door manufacture across a wide range of applications.
Suitable for both internal and external use, THERMAN door blanks are manufactured from FLEGT-licensed timber as standard, meeting the due diligence requirements of the EU Timber Regulation (EUTR) and UK Timber Regulations (UKTR) for added confidence in legal and responsible sourcing.
With a typical weight of around 25kg for a 915 × 2135 × 44mm blank (approximately 300kg/m³), the lightweight solid timber core helps improve tool longevity and reduce operative fatigue during processing, while extensive product testing confirms excellent thermal performance in line with Approved Document L requirements - all delivered at a competitive cost without compromising on quality or compliance.