Create custom compositions.
Our large selection of modular, combinable shapes, materials and colours offers you virtually limitless potential.
Finstral folding doors for boundary-free living.
Unfolded to the full.
Fully foldaway.
The FIN-Fold folding door can be fully opened by sliding the entire inward-swinging sash stack to the side. This creates up to 4.5 m wide openings.
Barrier-free.
With a height of only 2 cm, our thresholds are the flattest on the market and offer barrier-free outdoor access. Alternatively, the threshold can be fitted with an up to 75 mm high frame.
Slim frames or frameless.
Our folding door is available as a Slim-line model with an extra-narrow-looking frame and in the Nova-line Plus design with frame-covering glass on the exterior. The door exterior is made of aluminium while the interior is in either aluminium or wood.
Custom configuration.
The door’s unique design caters for combinations of between two to six sashes, with achievable widths ranging between approx. 2 and 4.5 m. Particularly user-friendly are those models in which all sashes run along the track.
Experience folding doors first-hand.
Do you just want to inspect, touch and try out our products? At the Finstral Studio, you will find a wide range of doors and windows. Along with expert answers to your questions.
Perfection starts at the design stage.
Windows are investments for decades. Which makes intelligent design all the more important. The diversity of design and functional options is far greater than you can imagine.
Seek advice.
Our experts are always there to help. For an initial discussion, a home visit or a professional consulting session at our Studio.
Craft your own design.
Online using the Finstral Planner or with our detailed and exhaustive window catalogue.
Your design forms the basis for our advice.
Ideas for your folding door.
Discover more references
At a glance.
The smarter opening option.
Being able to spirit away the entire glass front whenever you so wish brings true freedom to your living spaces. While conventional sliding doors typically incorporate a fixed light, Finstral’s FIN-Fold folding door glass panels slide and stack to the side across their full width. Fitted with the flattest thresholds on the market and a highly insulating uPVC core, the doorset combines barrier-free outdoor access with uncompromising energy efficiency and weathertightness.
FAQ
How burglar-resistant is a folding door?
The many joints may look like potential points of attack. But Finstral fits every FIN-Fold folding door as standard with solid swing-bolt hardware that engages deeply into the frame. This is combined with Multiprotect laminated safety glass (resistance class P4A), which is virtually impossible to break through as the highly tear-resistant film interlayer holds the shards firmly in place.
Do folding doors allow too much heat to escape in winter?
At Finstral, we incorporate a solid, corner-welded uPVC core that effectively interrupts heat transfer. This, in conjunction with our triple insulation glazing, enables us to achieve Uw values that far surpass the requirements of the Energy Saving Ordinance.
Can the folding door be left open even in strong winds or will it slam shut?
Standard doors often rattle. Finstral’s precision guidance solutions, robust tracks and holding devices for the open sash stacks ensure that everything remains firmly in place. Moreover, the perimeter bonding of glass and frame lends the units such a high inherent stability as to prevent any deformation, even under wind pressure.