Ultimate ALUK Aluminium Bi-folding Door

The Ultimate ALUK Aluminium Bi-folding Door is manufactured in ALUK’s BSF 70 profile, one of the most technically advanced and highly rated aluminium bi-fold door systems available.

Part Q and PAS24 accredited, it features concealed running gear, heavy-duty rollers and stainless steel tracks with multiple opening options.

With white gloss, anthracite grey matt, and semi-gloss graphite black available as standard colours, the Ultimate ALUK Aluminium Bi-folding Door combines an enhanced aesthetic with exceptional performance with all hardware and frames, guaranteed for 10 years.

Download The Ultimate ALUK Aluminium Bi-folding Door brochure

Style – built on substance

Ultra-smooth bottom running and concealed bogie system

The Ultimate ALUK Bi-folding Door employs a concealed but heavy-duty bottom running system and track with four wheels per carriage. This guarantees smooth and reliable running, while accommodating individual leaf weights of up to 100kg.


Internally beaded with softline/chamfered detail to all external doors and panels
Glazing sizing range from 28mm–40mm
Four heavy duty stainless steel wheels per leaf guarantee smooth operation
34mm low threshold and 22mm room divider track available (non-weathered)


Finish options

Standard profile colours

The Ultimate ALUK Bi-folding Door is available in white gloss (RAL9910), anthracite grey matt (RAL7016) and graphite black semi-gloss (RAL9011), as standard.

We can also offer any RAL colour or combination of colours, on special order. Finishes are polyester powder coated and are guaranteed for 10-years.

Anthracite Grey / White / Anthracite Grey on White / Black / Black on White

Colour-matched hardware

Master door handles are available in colour matched white and black, plus chrome and silver.
T-handles are available in white, black, chrome and black.

White / Matt Black / Chrome / Satin

Technical information

Cross sections

Threshold options

Standard threshold
34mm Low threshold
22mm Low threshold


With inward and outward opening options, the Ultimate ALUK Bi-folding Door offers exceptional design flexibility
with 14 different configurations up to a maximum seven individual panels.

Features and benefits

  • Contemporary and flexible design with softline or square detail
  • 14 different configurations of up to 7 panels
  • Open in or open out
  • Four stainless steel wheels per carriage ensures smooth and consistent operation accommodating weights of up to 100kg
  • Unique, flush T-handle ensures square stacking of doors
  • Maximum span of 7000mm
  • Maximum height 3000mm
  • Maximum individual panel width of 1200mm and weight of 100kg
  • Narrow profile maximises glazed area with glazing sizing range from 24mm–40mm
    U-values as low as 1.6W/m2K
  • Multi-point locking, Part Q compliant and fully tested to PAS24
  • Severe weather rated to BS6375-1:2009
  • Low threshold Part M compliant options


The Sliders UK difference

10-year security guarantee

We are committed to product quality, ensuring our doors and windows are manufactured to the highest standards

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Manufacturing excellence

Everything we ship goes through a rigorous quality control and dispatch process.

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The Ultimate Collection

PAS24 and Part Q compliant, high performance security with a range of low thresholds.

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Customer support

To find out more how we can support you and your customers, please call us on: 01772 698222, or email sales@sliders-uk.com

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Aluminium windows are seeing significant commercial growth but are also making inroads into the home improvement sector.

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