French doors – an ideal alternative

An attractive alternative to bi-folding doors, Alumina French doors are an ideal choice where
the aperture size is more limiting.

Ideal for balconies or rooms where space is limited, Alumina French doors offer versatility.

As with all Alumina products, aluminium residential doors can be supplied with almost any powder coated RAL finish, or foiled with one of Liniar’s realistic factory fitted woodgrain foils.

Alumina French doors are available with 28mm double or 36/40mm triple glazing, with U-values as low as 1.3W/m²K.

Why choose Alumina French doors?

With doors available to fit apertures from 1.2m to 2.4m and upto 2.5m high, Alumina French doors are perfect as an alternative to bi-folding doors, when space is limited – available as an open in, or open out option.

Alumina French doors can achieve a U-value as low as 1.3W/m²K thanks to the thermal patented polyamide lock built featuring Liniar’s ModLok™ technology.

Alumina French doors utilise the full range of Liniar PVCu beads, mid-rails, transoms, mullions cills and add ons, for ultimate choice.

Colour options

Alumina French doors are supplied as standard in plain white, black or grey powder coated finishes – or doors can also be personalised by choosing any RAL colour.

Alumina can also be ordered with a wide range of different colour precision fitted foils, ensuring a perfect match to Liniar PVCu windows.

Click here to see the full colour range.


Threshold options

All Alumina doors are available with a choice of five threshold options – including the rebated aluminium frame to the 23.5mm high low threshold and the Part M compliant threshold with tray.

A full size Alumina door has also been weather tested with a thermally broken threshold, achieving incredible results – beating the minimum requirements for both air and water tightness by more than double the most severe pressures within BS 6375.

Click here to view all threshold options.


Perfectly matched

Choose Liniar Flush Sash PVCu windows for a seamless match between your windows, flush door and aluminium bi-fold.


Fully guaranteed

Homeowners can register their Alumina Flush door online to take advantage of our guarantee.


Sash size

Ideal for commercial and self-builders, the sash in an Alumina flush door can span as large as 1.2m wide and 2.5m high.


PVCu accessories and add ons

Choosing a foiled finish means installers can benefit from utilising the full range of Liniar PVCu beads and add ons.


Glazing options

Choose from 28mm double glazing or 36mm or 40mm triple glazed options.


Combined thermal lock

Suitable for high traffic entrances or commercial applications, the Alumina flush door is built with Liniars ModLok™ technology.