Aluminium folding doors open onto a garden
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Aluminium Doors

Aluminium Bi Folding Doors

Multi-panel folding doors that stack neatly to one or both sides, creating a wide, unobstructed opening. The perfect solution for connecting indoor living spaces to gardens, terraces and outdoor areas.

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Multi-panel folding

Up to 7 leaves fold and stack neatly to one or both sides, creating a full-width opening.

Thermal performance

Thermally broken frame with argon-filled glazing for excellent energy efficiency.

Secure locking

Multi-point locking on the traffic door with shoot bolts on all other panels.

Bespoke sizing

Designed to your exact opening dimensions — any width or height within system limits.

In situ

Folding doors in different environments

Aluminium folding doors open onto a garden patio
Folding glass doors connecting open plan living and dining room
Bifold doors on a modern kitchen extension with garden view

Product overview

Full-width openings with multi-panel folding

Aluminium folding doors use a concertina action to fold and stack panels neatly to one or both sides of the opening. With up to 7 leaves available, they can span very wide openings while maintaining slim sightlines and maximum glazed area.

The 70mm thermally broken profile system incorporates a 34mm polyamide break, significantly reducing heat loss. Argon-filled double or triple glazed units achieve U-values as low as 0.7 W/m²K. A traffic door is included as standard for everyday access without opening the full set.

All panels are finished in T5 powder coat in any RAL colour. Multi-point locking on the traffic door with shoot bolts on all other panels. Supplied bespoke to your exact dimensions with a 8–10 week lead time.

2–7 panelsInward openingOutward openingTraffic doorCorner postFlush threshold

Technical Specifications

System typeFolding / bifold
Frame depth70mm system
Thermal break34mm polyamide
U-value (DGU)1.2 W/m²K
U-value (TGU)0.7 W/m²K
Max panelsUp to 7 leaves
Max leaf widthUp to 1000mm per leaf
Opening directionInward or outward
Standard coloursSandy black, Glossy white
Custom coloursAny RAL colour available
CE markingEN 14351-1 compliant
Lead time8–10 weeks

Typical applications

Residential extensions
Garden rooms
Kitchen-diner openings
Commercial hospitality
Retail showrooms
New build developments