Bi-fold door threshold options

Liniar bi-fold threshold options

All Liniar bi-fold doors are available with a choice of thresholds.


Standard threshold

Liniar bi-fold doors are supplied as standard with the continuous welded uPVC outer frame as the threshold (with optional cill) - giving you the most weather tight seal possible.

* Heights shown are for outer frame only. Height including cill = 86mm for Standard bi-fold and 92mm for ModLok bi-fold.


Low threshold

The Liniar aluminium low threshold is available in silver or gold finish to compliment the doors’ hardware.

Designed with a ‘thermal break’, the low threshold is also energy efficient, in line with the rest of the door system.

And its innovative design means there’s no need to excavate a trench for installation – the Liniar low threshold sits on top of an existing surface, providing less disruption and mess for you.

Full Tray

Part M compliant low threshold

In order to provide a wheelchair friendly, Part M compliant threshold, the Liniar aluminium low threshold is also available with a matching tray – creating an easy access ramp.

Half Tray

Part M compliant half threshold

In order for internal flooring or tiling to be fitted flush to the threshold, whilst retaining Part M compliance, Liniar’s aluminium low threshold can also be supplied with a matching half tray to create an easy access ramp.

QNX Passive House Secured By Design Corgi Fenestration PAS24 PAS12608 BBA BPF NBS bhhpa Bali NCC Queens Awards Sustainable Midlands Supporter

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