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A Stronger Door Construction

Endurance has utilised their 25 years in the industry to create a composite door design that stands out, capturing a unique standard of quality that enables Endurance Preferred Installers to gain a competitive edge. 
This door style comprises a wide range of innovative features that enable this door to outperform other door designs on the market. One of these is the solid timber core,  48mm thick, created using cross-laminated timber, the design is 10% thicker than most solid composite doors.
This core uses Kerto, a laminated veneered lumber (LVL) to ensuring an unrivalled degree of internal strength and dimensional stability. Standing as a smart choice for installers to use, these doors are CE marked and certified by VTT Technical Research Centre of Finland, no 184/03 for complete peace of mind.
The door has also achieved complete Secured by Design certification, a stringent testing process to ensure they uphold the Metropolitan Police preferred standard of crime prevention. 
The tests include a manual attack on the locking hardware with tools, an unlimited number of 3-minute attacks on the door cylinder, a 3 minute manual attack using chisels and brick bolsters and a hard body impact test to the door leaf at the hinge and locking points using a 50kg steel impactor: they have even held against a sledgehammer attack.
To ensure a consistent standard of security is achieved across the board, Endurance offer the ATK 3 Star Diamond Cylinder. These locks have achieved BSI, Secured by Design certifications and are designed alongside the Master Locksmith Association. 
Secure Peace of Mind for Your Customers
Endurance doors are sure to be a worthwhile investment for any product, keeping customers safe and properties secure. To become and Endurance Preferred Installer, and to benefit from the quality on offer, you can get in touch by calling 01652 659259 or by visiting






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