Folding doors — aluminium systems

Multi-panel systems that concertina and stack aside — opening up to 90% of the wall instead of half of it.

A sliding door always keeps one panel’s width of glass in the opening. A folding door does not: panels hinge against each other and stack at one end, so almost the entire opening clears.

The trade is hardware. Every hinge line is a sealing line and a load path, which is why the range runs from the light NF-01 at 50 kg a sash to the structural NF-04 — 145 mm section, 3.0 mm profile, 120 kg a sash.

01

In place

A folding door stacked fully aside, opening a living room to a tropical garden — Folding doors · NF-01–NF-04Design reference

Folding windows open on a balcony at sunset over the sea — Folding doors · NF-01–NF-04Design reference

A black aluminium folding door concertinaed and stacked to one side — Folding doors · NF-01–NF-04Design reference

Folding doors stacked open in a pale oak-floored room, palms and sea beyond — Folding doors · NF-01–NF-04Design reference

Folding glazing along a terrace with two woven chairs — Folding doors · NF-01–NF-04Design reference

A curved sofa in a panoramic room wrapped in folding glazing — Folding doors · NF-01–NF-04Design reference

Someone walking out through folding doors caught mid-stack after rain — Folding doors · NF-01–NF-04Design reference

A pavilion at golden hour with folding doors stacked open, mirrored in a still pool — Folding doors · NF-01–NF-04Design reference

A dining table just after lunch, folding doors open to a wet terrace and tropical planting — Folding doors · NF-01–NF-04Design reference

Folding doors stacked fully aside on a covered lanai after rain — Folding doors · NF-01–NF-04Design reference

Folding doors stacked open across a whole ground floor at golden hour, mirrored in a still pool — Folding doors · NF-01–NF-04Design reference

02

Choose this when

Entertaining spaces that should open completely to a terrace or garden
Restaurants, cafés and shopfronts that trade on open frontage
Anywhere the wall itself should disappear, not just a panel of it

03

Inside the frame

The same system, cut open. This is what sits behind the plaster once the trim goes on — and it is where a window succeeds or fails.

The thermal breakThose blue strips are PA66 polyamide, threaded through the profile to hold the inner and outer halves apart so heat and condensation cannot bridge the metal.

A window frame cut open in driving rain, showing the concealed drainage chamber in the sill — **The hidden drainage path**Rain driven at the frame collects inside the sill chamber and leaves through a concealed slot, instead of running down the face of the window.

A narrow-frame section cut through the sash and outer frame — **The narrow sightline**How little frame you can see is a function of how much structure sits behind it. This is the section that lets the sightline run slim without losing rigidity.

04

Performance

Rated by the supplier for up to 90% clear opening; the heavy sections are stated for entrance doors on large villas and commercial buildings.

What a specific opening achieves depends on its size, exposure and installation. That is why we assess the opening before we specify the system.

05

Each system, as supplied

The manufacturer’s own photograph of every system in this family. Not styled, not staged — the product as it is made.

NF-01 as supplied by the manufacturer — **NF-01**59 mm

NF-02 as supplied by the manufacturer — **NF-02**78 mm

NF-03 as supplied by the manufacturer — **NF-03**88 mm

NF-04 as supplied by the manufacturer — **NF-04**145 mm

06

The systems

Code	Section	Profile	Standard glazing	Hardware	Drainage	Sash load	Opening sash range
NF-01	59 mm	1.6 mm	5 mm glass · 15 mm air · 5 mm glass	Kerssenberg	Concealed	50 kg	550–800 mm × 700–1500 mm
NF-02	78 mm	1.6 mm	5 mm glass · 12 mm air · 5 mm glass	Kerssenberg	Concealed	60 kg	550–800 mm × 700–2500 mm
NF-03	88 mm	2.0 mm	5 mm glass · 27 mm air · 5 mm glass	Kerssenberg	Concealed	80 kg	550–800 mm × 700–3000 mm
NF-04	145 mm	3.0 mm	6 mm glass · 27 mm air · 6 mm glass	Kerssenberg	Concealed	120 kg	550–1500 mm × 1200–6000 mm

Standard configurations shown; glazing options and custom colours are available on most systems. Every system is specified against the opening before it is quoted.

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See it against your opening.

We look at the opening first, specify the system against it, and install what we specify. Book a Window & Door Assessment.

(0917) 800 0172