aluminium bifold doors BY aluk

AluK BSF70 Aluminium Bifold Doors

Our AluK BSF70 Aluminium Bifold Doors are the perfect choice for creating wide, open spaces that seamlessly connect inside and out. With smooth sliding operation and slim sightlines, they bring in maximum natural light while delivering a clean, contemporary finish.

Available in a range of configurations, these doors can be tailored to suit any project – whether it’s a modern extension or a stylish renovation. The BSF70 system combines strength, versatility, and sleek design, making it an outstanding solution for homeowners and architects alike.

COLOUR OPTIONS

White - RAL 9910hg

Black - RAL 9005m

Anthracite Grey - RAL 7016m

Black / White

Grey / White

Why choose aluk bsf70 bifold

- 5 Standard colours

- Single & dual colours available

- Contemporary, Stylish Bi-Folding door

- Magnetic catch for prime/slave leaf

- Stainless Steel Wheels

- U-Value as low as 1.4W/m²K

Why the Trade Choose AluK BSF70

The AluK BSF70 aluminium bifold system is a trusted, high-performance choice for both residential and commercial projects. Designed with slim sightlines and a wide range of configuration options, it delivers modern aesthetics with reliable functionality. Easy to install and engineered for smooth operation, the BSF70 achieves U-values as low as 1.4 W/m²K and is available with PAS 24 and Document Q compliance. With durable aluminium construction and proven performance, it’s a secure, efficient, and stylish solution for today’s market.

aluk flush aluminium frequently asked questions

  • Height: Minimum 1950mm – Maximum 2400mm

    Overall width: Minimum 1400mm – Maximum 6300mm

    Sash width: Minimum 600mm – Maximum 1200mm

  • The BSF70 combines slim aluminium sightlines with smooth folding operation and multiple configuration options, making it a versatile choice for both modern and traditional projects.

  • With the right glazing, the BSF70 can deliver U-values as low as 1.4W/m²K, helping meet thermal efficiency targets.

  • Yes – the BSF70 is available with PAS 24 and Document Q compliance, offering enhanced security and peace of mind for homeowners and trade customers.

  • You can choose from 5 standard colour ways, with the option of single or dual colour finishes to match interior and exterior design requirements.

  • Very flexible – it can be configured with multiple sashes, opening styles, and layouts to suit everything from small extensions to large openings in commercial spaces.

  • Lead times can be as little as 3 weeks, although this is subject to change depending on demand and specification.

TECHNICAL SUPPORT

We’re committed to helping our trade partners win new business. As well as delivering high quality glazing products, for residential and commercial projects, we offer guidance, technical expertise and sales support.

From survey sheets to door adjustment tips, using our 30 years’ of knowledge, we’ll provide you with the tools necessary to deliver the best installation services possible.

Find what you’re looking for in our downloads section.