Endurance composite doors are renowned for their strength and security, our 48mm thick cross-bonded veneered laminated solid timber core delivers unrivalled strength and dimensional stability and is a natural choice for high security, providing our homeowners peace of mind.

Endurance doors are made up of 17 laminations making the door nearly 10% thicker than most composite doors. By investing in our doors, you’ll be able to enjoy an unrivalled degree of security and performance.

Outclassing The Rest

Many composite doors on the market utilise a traditional ‘stile and rail’ internal subframe, which offers inferior performance when compared to the Endurance solid LVL core. This is important to note when you’re looking for a new door for your home.

Stile and rail sub-frames are usually filled with either a PU foam core, or a mix-species timber core. This notably reduces the inherent strength of the door, and can even result in some doors bowing due to the lack of structural integrity.

With the Endurance design, you can be sure that security and strength are never affected by a poorly designed sub-frame. We know that feeling safe in your home is a priority for you, which is why we make it a priority for us.


What Makes the Timber Core Design Different?

  • Built to Last

    Endurance is not just in our name. Due to the inherent thickness of our composite doors, they can offer a much higher lifespan than conventional composite door designs. Outdated designs can often warp out of shape over time, effecting door performance and appearance.

    As our timber core comprises laminated layers, you will not have to worry about this happening in your home. This core is further enhanced with our unique Moisture Barrier System, which works to protect your door against water damage and delamination.

    Solid Timber Core Timeline Image
  • Sledgehammer Tested

    To ensure all Endurance doors operate to modern standards, we test them in accordance with common burglary techniques. We have even put our doors through a sledgehammer testing process, showing how difficult it would be to create in a hole in the door that you choose.

    Our commitment to ensuring you, your family and your property remain safe is made clear with our cutting-edge door design.

    Solid Timber Core Timeline Image
  • Kerto® LVL Timber Core

    Kerto® is a laminated veneered lumber (LVL) that delivers unrivalled strength and dimensional stability. The engineered layup comprises cross-bonded veneers that enhance lateral strength and stiffness.

    This intelligent and modern design makes it the natural choice for high security composite entrance doors. Kerto products are CE marked and certified by VTT Technical Research Centre of Finland, no 184/03.

    Solid Timber Core Timeline Image

Design Your Composite Door

Our HomeView Door Designer offers a simple to follow step by step process, enabling you to construct your ideal composite door and see how it looks on your home. We’ll also share your design with up to 3 members of our Installer Partner Network who can offer you a custom quote, based on your exact specifications.

Alternatively, you can contact your Local Installer Partner using our ‘Find an Installer’ search.

Etna Classic Composite Door

Join the rest of the UK

And find the perfect composite door installer for you

  • Postcode
  • Name
  • Details

Enter Your Postcode

Start typing a location and select from the list


Enter Your Name


Enter Your Details

Privacy Policy

Place Icon

Design Your Door

Find An Installer

Quick Quote