+44 (0)345 64 64 646 Get a Quote
Flush Glazed Glass/Glass

GG65 GlassIIEdge™

Thermally Insulated Flush Glazed
Bifold Door System

Patented flush glazed, frameless glass with glass. The GG65 is a slim all glass triple flush glazing system. With many door and window options, achieving fantastic thermal values.

10 Year Manufacturers Warranty

10 Year Insurance Backed Warranty

25 Product Warranty

£1,000 Security Warranty


Flush glazed, frameless glass system built around a thermally insulated aluminium core. Ultra modern contemporary appearance. Clean lines and smooth appearance. The PATENTED movable wall Glass2Edge™ system.

Thermally efficient, triple glazed, argon gas filled, unique architectural designed with glazed in or glazed out configurations, with maximum security and integrity without compromises.

Powder coated thermally insulated aluminium frames for structural stability and strength blended with a unique designed glass retaining system ensuring that no glazing beads are required and that the structural integrity of the glass panels remain intact in all opening situations.

The design of the system also ensures the glazing chambers are fully ventilated thus ensuring longevity of the triple glazed units.

A matching range of windows and doors are available.

CE Compliant
BS EN 14351-1: 2006

Approved Installer

Glazing Technology

GG65 profile drawing


Key Features
  • Thermally insulated for greater thermal efficiency
  • Finger safe and severe weather rated seals and gaskets
  • Dual running roller system, encapsulated in the track
  • Corner posts can be incorporated to produce corner openings
  • Hidden Rollers and locking
  • Heavy-duty corner connectors for strength and durability
  • Hard wearing material and finish
  • No condensation
  • Mechanical life expectancy of up to 25 years
  • Modern appearance
  • Corner posts can be incorporated to produce corner openings
  • In-line out of sight track offering a practical functionality
  • Marine treatment available for salt water environments
  • Outlet Water escape
  • Pull handle(s), to enable ease of operation and easy closing
  • Resistant to scratching & denting
  • Robust hardware using our own ‘Fold N Slide’ hardware range
  • Steel wheels sealed bearings for maintenance free use
  • Structurally strong - built to last
  • Trickle Ventilation, to satisfy building regulations


  • End panels and pass doors are fitted with high security locking mechanisms
  • Intermediate panel joints are held closed by internal shoot-bolts top and bottom
  • Option of key locking shoot-bolts are available for added security and external access
  • Internally glazed for all systems (option to upgrade to laminated impact glass)
  • Finger safe gaskets are designed to be safe should fingers get trapped upon closing
  • Encapsulated running gear within the track, preventing it from being attacked
  • Tongue and groove (interlocking panels) design to prevent panels from being crow barred open
  • Document Q, Security - Dwellings PAS 24:2012.

Threshold Options

We currently offer nine threshold options to satisfy all applications and current building regulations, with all options available as either inward or outward opening. But for the many, the most popular option is our flush threshold that blends the inside floor with the outside floor, especially those with children, elderly or wheel chair users.

Our flush track also certifies as Part M disabled access compliant, is fully weather-rated and the profile itself is available in a choice of 2 colours / finishes; anodised silver (standard) and bronze.

GG65 threshold showing flush track option

Flush track
Threshold option

GG65 threshold showing flush track with rebate option

Flush track with rebate
Threshold option

GG65 threshold showing flush track with cill option

Flush track with cill
Threshold option

GG65 threshold showing flush track with cill and rebate option

Flush track with cill and rebate
Threshold option

GG65 threshold showing raised track option

Raised track
Threshold option

GG65 threshold showing raised track with rebate option

Raised track with rebate
Threshold option

GG65 threshold showing raised track with cill option

Raised track with cill
Threshold option

GG65 threshold showing raised track with cill and rebate option

Raised track with cill and rebate
Threshold option

GG65 threshold showing raised track with double cill option

Raised track with double cill
Threshold option


  • High performance seals/gaskets
  • PVC nitrile (synthetic rubber) gaskets, fitted as standard and used to seal the double glazed units into the panels and protect the door from water ingress
  • PVC nitrile seals between each panel (including top and bottom of the panel) to prevent water, wind and noise from entering the property
  • Tested for water ingress, wind resistance and air permeability

The main properties of PVC nitrile is its outstanding heat, acoustic and thermal resistances.

Thermal efficiency
  • No condensation
  • Super Spacer® bars fitted as standard to glass units
  • Thermally insulated aluminium track
  • U-Value of complete unit 1.53 W/m2k
  • U-Factor of complete unit 0.27 Btu/h·ft²·°F
  • UKAS PAS23 weather tested
  • Weather tested to over 300 pascals


Frame width: N/A
Frame depth: 70mm / 2¾in
Maximum opening width: 18300mm / 60ft
Maximum opening height: 3000mm / 10ft
Panel height range (min/max): 305mm / 1ft - 3000mm / 10ft
Panel width range (min/max): 305mm / 1ft - 1100mm / 3ft 7 1/2in
Material: Glass outer / glass inner
Stock colours: Black
Optional colours: Glass tint, clear or RAL colour
U-Value of complete unit - W/m2k: 1.3 - 1.4
U-Value of centre pane (Glass) - W/m2k: 0.92
U-Factor of complete unit - Btu/h·ft²·°F: 0.23 - 0.25
Meets UK Building Regs: Approved Doc L (15 June 2022): Yes
Guarantee (Product): Up to 25 years
Guarantee (Manufacturers): 10 years
Aluminium thickness: 1.75mm / 1/16in
Glass units, standard: 71mm / 2 4/5in triple glazed, low-E tempered
Glass units, optional: Laminated, anti-sun tinting (grey, bronze, green and blue), Turtle Glass, Krypton Gas


GG65 General Arrangement Drawings
Adobe Acrobat · 2.3MB

GG65 Bifold Track Detail (inc. drainage)
Adobe Acrobat · 173KB

Installation Services

We offer a range of installation services

Explore the GlassIIEdge™ bifold door ranges



Glass / Glass



Aluminium / Glass