Pas 24 badge
Internal view of Optio BSC94 Inline Sliding Door
ALUK logo white aluk logo

BSC94 Aluminium Sliding Doors

The AluK BSC94 inline aluminium sliding door is a versatile sliding door system perfect for installations in contemporary residential and commercial properties. It is a highly customisable sliding door system and can be specified to meet a wide selection of architectural glazing applications.

  • 20mm – 31mm double glazed
  • PAS 24 certified
  • Duo and tri rail systems
  • Internal glazing
Get a Trade Quote

Product features

Design features

The AluK BSC94 sliding door system features sightlines of just 85mm. Their sleek and stylish appearance makes them a popular choice with modern residential and commercial applications, while their superb security standards offers peace of mind that a property is fully protected. For glazing installers working on premium property upgrade projects and luxury new builds, they are an excellent choice.

Product options

  • Dual colour option
  • 20mm – 31mm glazing thickness
  • Maximum vent weight 400kg
  • Class 4 air permeability
  • Class 7A water tightness
  • Single, double, and triple track options
  • C rated energy efficiency
  • U-values as low as 1.7 W/m²K (double glazed)
  • U-values as low as 1.5 W/m²K (triple glazed)
  • Available as slim version with 45mm interlock


U-value (Double Glazing)* (Ug = 1.0W/m²K) (Mono Rail)

U-value (Triple Glazing)* (Ug = 0.7W/m²K) (Mono Rail

U-value (Double Glazing)* (Ug = 1.0W/m²K) (Dual Rail)

U-value (Triple Glazing)* (Ug = 0.7W/m²K) (Dual Rail)

Green guide rating

Acoustic performance (dB)

Air Tightness (Pa)***

Water Tightness (Pa)***

Wind Load (Pa)***


Max Vent Weight****

Max Frame Height

Max Frame Height with Security Features


Glazing options

Glazing thickness


1.7 W/m²K

1.5 W/m²K

1.9 W/m²K

1.7 W/m²K

C Rated

Rw (C;Ctr) 36 (-1;-3) dB**

Class 4 (600 Pa)

Class 7a (300 Pa)

C4 (1600 Pa)

Inline Sliding






20 - 31mm




1.9 W/m²K

1.6 W/m²K

C Rated


Class 4 (600 Pa)

Class 7a (300 Pa)

C4 (1600 Pa)

Inline Sliding






20 - 31mm



Inline smooth aluminium sliding doors system

AluK BSC94 inline sliding doors are a sleek and stylish door system suitable for use in a range of high-end residential and commercial applications. They are available with single, double, and triple track options to allow large apertures to be filled. They can also accommodate either double or triple glazing depending on your requirements. When you want to offer your customers a high performing and aesthetically attractive sliding door system, the AluK BSC94 is an excellent choice. For installers working in the residential and light commercial sectors, they are the perfect sliding door option.

BSC 94 Aluk profile

Frequently Asked Questions

Can’t see the answer you’re looking for? View more answers here.

Contact Us

What are your lead times?

Lead times can vary per product. For stock PVCu colours we work to a 10-15 working day schedule. For more up to date lead times on any specific product e-mail us at where we will be happy to help.

Are your products compliant with new building regulations?

Our Eurocell PVCu range of products are fully compatible with all new build regulations. Quantum Windows has a number of secured by design certifications to provide you with peace of mind and our quality systems in place are all aimed at producing a quality product first time, every time.

Currently, our range of Aluminium double glazed Aluk 58BW HI Windows, Aluk 58BD HI Residential doors, EdgeGLIDE+ Sliding door and Unifold HI all have a U-value of 1.4 or below and are compliant with new building regulations. Our range of compliant products is always growing, so please give us a call for the most up to date information.

Please note that you will need to specify on your enquiry if you need your product to meet the new building regulations.

Where do you deliver to?

We deliver weekly to the West Midlands, Derbyshire, Leicestershire, Warwickshire, Oxfordshire, Berkshire, Surrey, West Sussex, East Sussex, Kent, Greater London, Hertfordshire, Essex, Suffolk, Cambridgeshire, Bedfordshire, Buckinghamshire. Norfolk and of course Northamptonshire.

aspects white open bi fold doors

I have been buying windows and doors from Quantum Windows for over 25 years. I have always found the pricing very competitive and the quality has been very high. On the rare occasion a problem has arisen it has been dealt with swiftly and efficiently. The office staff are always polite, friendly and professional and we have built a strong relationship over the last 25 years. The drivers are excellent. I know them very well and they have adapted to my ways of working and are always willing to help and accommodated me.

Craig Gutteridge

“We have dealt with Quantum Windows for 13 plus years, we find the staff to be courteous and polite and any queries we may have are dealt with promptly and efficiently, nothing is too much trouble”

Jackie - Accounts Dept

W R Enterprise Glass & Glazing Ltd.

We have been buying from Quantum Windows for almost 30 years now, they offer a wide product range and the Team have excellent product knowledge which is invaluable in an ever-changing market.

All team members are friendly, helpful and efficient, orders are processed with care and quotations provided promptly. I would have no hesitation in recommending Quantum Windows.

Vicki Webb

Clearview 2000 LTD

‘We have used Quantum Windows for many years now, we have always found them to be very easy to work with, the staff are all very helpful and friendly, they are always available to offer any help should we need it, excellent product!’


Chapel Windows

Glevum and Quantum have enjoyed an excellent working relationship for a number of years, working together to provide a high quality, value for money product offering and service for the end user.

As well as delivering a high quality product, the knowledge and experience of the staff at Quantum is invaluable to a customer in a market where Building Regulations are constantly changing.

Mike Donaldson

Glevum Design & Build

As installers of both PVCu and Aluminium to the New Build market, the importance of on time delivery is totally time critical.
Over the last 20 years Quantum windows have worked closely with PGB to partner with us and deliver our offer to site.
Highly professional, and a pleasure to have worked with them so closely over the years.

Phil Martin CEO

Portico CB Ltd

Click here for a trade quote