Bifold Doors (2- or 3-glazing)

Product code: BIFOLD

Standard Configuration

Energy EfficientEnergy Efficient

Additional Options

Sound insulation glassesSound insulation glasses
Sun protectionSun protection

Note: U-value (0.60 – 1.2) indicates thermal transmittance of window. Smaller value equals better thermal insulation.



Sound Insulation Rw = 33 dB (-2;-5) - 3-glazing, standard glasses
Frame Depth 78 mm + guide rails (97 mm with alucladding); 88 mm + guide rails
Material of Sash and Frame Glue-lam pine; quality class A1-A3
Glazing 40 mm 3-glazing or 50 mm 3-glazing with 2 LowE glasses, argon filled (available also with 26 mm 2-glazing)
Hardware Roto bifold hardware
Aluminium Cladding Optional external alucladding; NB! 88 mm system timber only!
Thermal transmittance Uw = 0,90....1.2 W/m²K (depends on glazing and profile system)
Color of sash gaskets White, grey, beige, brown

Single sash: W 490 - 940 mm x H 1620 - 2420 mm

Frame: max width 4700 mm x max height 2500 mm

Material of frame and sash

Glue-lam pine, Nordic timber quality class A1-A3


Teknos Aquatop and/or VRC

RAL; NCS and translusent systems:



Glasing options

Click on the picture below to browse for more:

glazing options 1

Drawings: DK13 bifold door PDF and DWG

Drawings: DK88 bifild door PDF and DWG

Folding doors are ideal for locations where there is a need for large openable areas: opened door leaves are fixed on the side(s) of the product. This way opening is completely clear.

The product is based on same profile system as Viking inward opening wooden window (therefore it does not have conventional threshold). In addition to traditional sideways slide opening it tilts at the top for ventilation. ROTO hinges system enables to manufacture up to 130 kg openable sash. Profiles and technical properties are similar to tild-and-turn windows.

Folding door is available both as wooden and aluminium clad door. Traditionaldouble glazing (Ug = 1,1 W/m2K) or energy efficient triple glazing (Ug = 0,6 W/m2K) can be used.

Finishing according RAL, NCS (paint) or Vikings (lacquer) tone catalog by customer's choice preference.

See more different opening schemes (click on the picture below for closer look):

bifold schemes small


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