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Origin Doors

Bi-fold Doors Specification

Specification overview

Thermally Broken Aluminium Bi-folding Door

External view of bi-folding doorsExternal view of bi-folding doors
External view of bi-folding doorsInternal view of bi-folding doors

Profile specification

Outer Frame Depth75mm
Sash Depth59mm
Sash Sightline72mm
Track Height (not including rebate)50mm


  • Up to 20 year guarantee
  • The doors are bottom running and incorporate a unique free glide carriage assembly, which uses acetal rollers with sealed SKF stainless steal bearings on an 8mm hardened stainless steel axle
  • Chamfered bead internally and externally
  • Packaged in kit form for easy transportation and installation
  • 8 point locking system which conforms to Secure by Design standards, and includes chamfered 20mm linear bolts and deep throw 25mm security hooks
  • Each door comes with three solid zinc security hinges

Options & extras

  • Single, French, Bi-fold and Moving Corner Bi-Fold Doors
  • Accommodates double and triple glazing with unit sizes of 24mm, 28mm or 32mm
  • Weathered (standard) or non-weathered (low) threshold available
  • Open in or open out
  • Cill options are: 95, 155, 180 and 225mm
  • Available in over 150 different colours
  • Fork colours include black, white, stainless steel finish or colour coded options
  • Standard, 1 star or 3 star keyed cylinder options
  • Hinge colours: black,white, stainless steel finish
  • Colour coded Gaskets available in 5 different colours: black, white, light grey, graphite grey, light oak, bronze, chestnut brown
  • Door to window coupling
  • 2500EA & 5000EA Trickle Vents available
  • Marine finish
  • Comprehensive handle range, including colour matched options

Available in the following colour finishes:

lead time
not ours”

Origin's Popular Colour Range is available on 'Your lead time, not ours'

Dark Silver Metallic (9007M)
Black Grey (7021M)
Jet Black (9005M)
Slate Grey (7015M)
Light Silver Metallic (9006M)
Hipca White (9910G)
Anthracite Grey (7016M)
9910G / 7016M (Dual Colour)Dual Colour is available on a three week lead time

Origin's four woodgrain colours are available on 'Your lead time, not ours'

Natural OakNatural Oak
Golden OakGolden Oak

Origin's special RAL colours are available on a three week lead time

Q-Lon Gasket colour recommendations

Door ColourRecommended Q-Lon Gasket Colour
7015M, 7016M, and 9007MGraphite Grey
9005M and 7021MBlack
9006MLight Grey
Natural Oak and Natural OakGolden OakGolden OakLight Oak
MahoganyMahoganyChestnut Brown
Origin's Multi-Point Lock


Origin's Multi-Point Lock

All lead doors, greater than 1125mm tall, contain the Origin Multi-Point Lock

The Origin Multi-Point Lock offers eight points of locking and is part of the reason our overall door system is Pas 24 & 23 certified

In the image you will see six points of locking, we add a shoot bolt that goes into the bottom track and another into the top track resulting in a total of eight points of locking


We offer 3 types of locking barrel/cylinder, our standard barrel, ATK barrel and ABS barrel.

The standard barrel has been independently certified to BS EN 1303 - Grade 6

The ATK barrel is certified to 3 Star British Kite Mark TS007:2014

The ABS barrel is also certified to 3 Star British Kite Mark TS007:2014, with coded magnetic keys

Performance & Limitations

Origin Thermal Ratings
Origin Bi-Fold Door Double Glazed1.6 W/(m2K)
Origin Bi-Fold Door Triple Glazed (with krypton)1.3 W/(m2K)
Origin Bi-Fold Door Triple Glazed (with argon)1.5 W/(m2K)
Energy RatingD
Air Permeability600pa Class 4
Water TightnessClass 9A 600 pa
Resistance to Wind Load1200pa Class A3
Exposure Category1200 Special
Performance Testing

PAS 24 & 23 Certified (when supplied with one of our 3-star barrels)

Passed 50,000 lead door cycles and 10,000 full cycles, equating to 25 years of use

Size limitations
Minimum door panel (mm)
Even No. Same Direction700400
Odd No. Same Direction400400
Maximum door panel (mm)
With multi-point lock
Minimum (mm)n/a1125
Maximum (mm)n/a3000

Maximum steel deflection - 3mm


Origin are ISO 9001 accredited

Certified ISO 9001:2008 company
Building Regulation Requirements
New Build and Extensions2.0 W/(m2K)
Replacements1.8 W/(m2K)
Energy RatingE or better