The Ultimate ALUK Aluminium Sliding door

Manufactured to the highest standards the Ultimate Aluminium Inline Sliding Door combines a sophisticated and elegant design with advanced technical performance.

Manufactured in the industry leading BSC94 system from ALUK, it’s available in mono, dual or tri rail configurations, delivering flexible design options combined with slim sightlines and advanced technical performance. This includes PAS 24 certification and Part Q approval.

Available in a wide range of anodized finishes including single and dual colour options, the Ultimate Aluminium Patio Door is also available in an ultra-slim sightline option, the BSC94S.

Download The Ultimate Aluminium Inline Sliding Door brochure

Project defining aesthetics

Minimal sightlines and end-user appeal

With a contemporary architectural aesthetic and maximum glazed area, aluminium inline sliding doors are a highly popular choice for home improvement and commercial projects.

The ultra-slimline option on the Ultimate ALUK Aluminium Inline Sliding door from Sliders UK takes minimalist sightlines a step further, with a 45mm interlock. This compares a standard 85mm, minimising disruption to sightlines.


Three chamber thermally broken profile
Ultra-slim sightline 45mm interlock
Accommodates IGUs ranging from 20-31mm
Single and dual colour options including White gloss; Anthracite Grey Matt; Grey-on white; and black on white
Available in mono, dual or tri-rail options


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 white and black, plus chrome, gold and silver.

White / Black / Gold / Chrome / Satin



Applicable for In-Line sliding and Lift & Slide door configurations.


Applicable for In-Line sliding and Lift & Slide door configurations.


Applicable for In-Line sliding configurations.

Threshold options

Standard interlock

Slim interlock

Dual Track Threshold / Triple Track Threshold

Technical information

  • Three chamber inline slide or lift-and-slide system
  • Single, Double or Triple Track options
  • Up to six sliding panels
  • Maximum height 3000mm (1600mm minimum)
  • Robust and durable design allowing up to 200kg panel weight inline sliding and 400kg in a lift-and-slide configuration
  • Accepts 20mm – 31mm Double Glazed Units
  • Thermally broken profiles achieving u-values as low as 1.7W/m2K.
  • PAS24 and Part Q approved two panel door with Pentalock option
  • Available in single or dual colour options, polyester powder coated finishes
  • Complete range of hardware and security features
  • Six point hook lock
  • Weather tested to Class 7a (300Pa) water tightness; Class 4 (600Pa) air tightness; and C4 (1600Pa), wind loading


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

Read moreRead more

Manufacturing excellence

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

Watch now

The Ultimate Collection

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

Read moreRead more

Customer support

To find out more how we can support you and your customers, please call us on: 01772 698222, or email

Get in touchGet in touch

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

Find out moreFind out more