Bi-fold · ALUK
ALUK BSF70 Bi-Fold Doors
New for 2026
ALUK's BSF70 bi-fold system — UK-manufactured aluminium bi-fold with slim 100mm sightlines, polyamide thermal break and configurations from 2 to 7 panes. Powder-coated in any RAL colour.
- Slim 100mm sightlines
- Low-threshold option
- U-values from 1.4 W/m²K
- 2–7 pane configurations
- Polyamide thermal break
- Full RAL palette (single or dual colour)
- Wheelchair-friendly threshold available
- 28mm double or 36mm triple glazed
- Made in the UK
- 10-year powder coat guarantee
Full specification
Technical data sheet for ALUK BSF70 Bi-Fold Doors. Bespoke sizes and colour matches available on request.
SystemALUK BSF70
Frame materialPowder-coated aluminium
Sightline100mm interlock
Thermal breakPolyamide
U-valueFrom 1.4 W/m²K
Configurations2–7 panes
ThresholdStandard or low-threshold
Glass28mm double / 36mm triple
ColoursFull RAL palette
Warranty10-year powder coat
Delivery & trade terms
The same shipping and trade terms apply to every product we supply.
Frequently asked questions
How do I get a quote?
Send your sizes, quantities, colour and glass spec via the quote form, phone (07364 271382), or email (sales@theframeyard.co.uk). We come back within 1 working day with trade pricing and a confirmed lead time.
What's the lead time from order to delivery?
10–15 working days from order confirmation on most products, faster on stock lines. Your named account manager confirms the delivery slot when the order lands at the factory.
What if there's an issue on delivery?
One phone number, one contact, one problem. Photos of any damage or short-shipment on the pallet and we've got a replacement in production the same day.