seamless
Integration
Index matches perfectly with all Sheerline products.
beautiful
Aesthetics
Modern, sleek design to complement your home
flexible
Configurations
Choose from a range of configurations
excellent
Thermal Efficiency
With U-values as low as 1.0 W/m2K

Sheerline Index Bifold Doors for Trade
Index offers all the features and benefits Sheerline’s customers have come to expect.
Sheerline Index bifold doors combine contemporary aluminium styling, excellent thermal performance and installer-friendly design, offering a practical and versatile solution for residential extensions, renovations and new-build projects.
Fabricated to order by DRS at our Mansfield factory, Index bifolds give trade installers a quality aluminium door system backed by experienced technical support and nationwide delivery.
As part of our wider aluminium bifold doors range, Sheerline Index provides another option for installers looking to match the right system to their customer’s project, specification and budget.

WHY CHOOSE SHEERLINE INDEX BIFOLD DOORS?
FEATURING THERMLOCK® TECHNOLOGY
Featuring a sleek and modern exterior, the innovative Thermlock® multi-chamber thermal design is cleverly hidden, ensuring properties remain well insulated against the challenging UK weather. These insulating chambers function as a thermal break and, when combined with high-performance glazing, deliver superior thermal performance that far exceeds that of conventional polyamide thermal breaks.

Colour Options

Hipca Gloss White 9910

Anthracite Grey Matt 7016

Jet Black 9005
DOOR HANDLES
For the finishing touches Ultion lever handles bring a curved form to the traditional lever door handle, combining contemporary styling with robust protection. Choose from seven attractive handle finishes to complement the door colour and surrounding hardware. As they are non-handed the handles are reversible.
Security and appearance are equally important, which is why as standard we install 2* handles. The handle offers incredible security from drilling and lock snapping, won’t be crushed by mole grips and the fixings thread through hardened steel bosses to stop twisting.
Looking for something different?
Choose from a wide range of other designs, get in touch to discuss your requirements
TECHNICAL INFORMATION

CLIP-IN BEADS
Pre-gasketed clip-in beads – remove the need to wedge gasket or mill beads. Saving time in both fabrication and installation.

SECURITY
Bespoke Ingenious Locking with one piece keeps and integral finger-pull passive door lock

SLIMMER SIGHTLINES
A single roller eliminates the need for a dummy or floating mullion, creating slimmer more balanced sightlines
Sheerline Index Bifold Doors
Integral Blinds
Our integral blinds offer a sleek and modern alternative to traditional curtains, external blinds, or other window treatments. They are a practical solution for sliding patio doors, bifold doors and French doors as they don’t interfere with the opening mechanism and sit neatly inside the panes of glass. Integral blinds help regulate room temperature, provide privacy, and protect furniture from fading. Offering exceptional protection from the sun’s heat and glare, these blinds stay dust and dirt-free for life.
Available in a choice of colours and operating systems, integral blinds can be specified to complement the door design and glazing requirements.

TECHNICAL SPECIFICATIONS
| Slim Sightlines | 134mm sash to sash 108mm sash to outer frame 72mm outer frame |
| Min Size | 700mm (w) x 2000mm (h) |
| Max Size | 6000mm (w) x 2300mm (h) |
| Min Door Height | 1955mm without cill |
| Max Door Height | 2315 inc cill |
| Double Glazed | 1.4 W/m²K |
| Triple Glazed | 1.0 W/m²K |
| Part L Compliant |
| Slim Sightlines |
| 134mm sash to sash 108mm sash to outer frame 72mm outer frame |
| Min Size |
| 700mm (w) x 2000mm (h) |
| Max Size |
| 6000mm (w) x 2300mm (h) |
| Min Door Height |
| 1955mm without cill |
| Max Door Height |
| 2315mm inc cill |
| Double Glazed |
| 1.4 W/m²K |
| Triple Glazed |
| 1.0 W/m²K |
| Part L Compliant |








