• Sheerline Anthracite Grey Bifolding Doors
  • Open View - Anthracite Grey Aluminium Bifolding Door - 3600mm x 2100mm - One Master to Left, Three Folding to the Right | 4-3-1
  • Closed View - Anthracite Grey Aluminium Bifolding Door - 3600mm x 2100mm - One Master to Left, Three Folding to the Right | 4-3-1
  • Sheerline Lock System for 4-3-1 Operation Bifolds
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SHEERLINE ALUMINIUM

Anthracite Grey Aluminium Bifolding Door - 3600mm x 2100mm - One Master to Left, Three Folding to the Right | 4-3-1

Anthracite Grey Aluminium Bifolding Door - 3600mm x 2100mm - One Master to Left, Three Folding to the Right | 4-3-1

As a recommended standard, all our doorsets are manufactured with total deduction of 15mm to both the width and height of the described sizes. This allows for tolerances in installation. All sizes shown in titles and descriptions are for the recommended Aperture Size for each doorset.

Perfect projects for your project needs

Colour
Size
Number of Panes and Operation
£2,871.00
£3,386.00 £2,871.00
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Hardware Details

- Black furniture and handles sets

- High security multipoint mechanisms

- Key operated master lock with 3 keys

Glazing Details

28mm

Technical Summary

Free Delivery*

Free delivery throughout England, for more information on delivery options please contact our team.

Approved Guarantee

10 Year Aluminium Guarantee

5 Year Guarantee on Glass

1 Year Guarantee on Hardware

Transform your living space with Project Doors, a trusted UK-based supplier of Aluminium Bi-folding Doors, delivered directly to your home.

Our Grey Sheerline Bifolding Doors are constructed with high performance thermally-broken aluminium, superior PAS:24 security and we even include laminated safety glazing at no extra cost.  

All bi folds can be delivered to England, Wales and Scotland.

Please Note - Due to High Demand This product is Made to Measure and currently estimated at a 6-8 week lead time.

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Technical Details

Product Model Sheerline Bifolding Doors

Material Thermally Broken Aluminium

Door Width 2385mm

Door Height 2085mm

Frame Depth 82mm

Cill Depth 175mm including Frame Depth

Sash to Sash Sightlines 138mm

Internal Threshold Height 52mm

Glazing A Rated Toughened Safety Glass

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External Closed View
Open External View
Closed Internal View
Image of a beautiful bifolding door available at Project Doors

With a wide range of configurations and sizes to suit every project

Our bifolding doors are perfect for your home, garden room, outbuilding and even bar rooms! All we recommened our products are installed by professional and certified iinstallers, our doors are great for the self build project, providing a complete door with simple and easy installation.

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About your doors

  • Perfect for your home or garden project!

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  • Image of the British countryside

    Premium Doorsets made in the heart of England

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  • Unbeatable performance vs other Aluminium Doorsets

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  • Super Secure

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  • Weatherproofed

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  • Low Maintenance

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  • Thermally Efficient

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  • Competitive Prices

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  • Sheerline Grey Bifolding Door Lock

    Simple Operation

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What bifolds can achieve..

Bi-folding doors should maximise the light flooding into your home, and the enjoyment of your garden or patio. Bringing an improved sense of space and creating panoramic views that can transform interiors. They also need to offer reliable operation, while keeping heating bills low, and would-be intruders out.

That is why we have designed our Prestige bi-folds to offer you the perfect balance of refined looks, exceptional thermal performance and outstanding operation. Building on years of experience, Sheerline have incorporated many new innovative ideas to create a refined aluminium system that’s ideal for discerning homeowners who aren’t willing to compromise.

Unique Thermlock® technology provides exceptional thermal performance, while bespoke locking systems and our patented construction method provides unparalleled levels of security.

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  • Free Shipping

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  • Hassle-Free Exchanges

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