Architect | Workshop | Jansteel


Janisol folding doors are based on the Janisol insulated system and have a multitude of applications. They can be used as a room divider or to provide access to exterior space. The proven system, developed specially for flexible openings, can be used for inward- or outward-opening doors. Ultra-slimline steel profiles and narrow face widths result in robust, resilient and durably strong folding doors


Steel profiles made from zinc-coated steel strip / insulators made from plastic


Powder-coated or wet paint finish

Element types

Manual folding doors

3 to 6 leaves

Inward- and outward-opening

Free leaf configuration


Fittings up to 200 kg

Leaf weight up to 100 kg

Leaf widths up to 1,000 mm

Leaf heights up to 3,200 mm

Special technical features

Installation depth of leaf 60 mm

Installation depth of frame 60 mm

Infill element thickness 5 - 35 mm

Face width from window overlap area 105 mm

Face width leaf with frame 82.5 mm

Test certificates

In-house tests:

Tightness against heavy rain class E750

Air permeability class 3-4

Resistance to wind load class C4/B4

External tests for CE marking in progress