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Bi-folding door terminology explained

Bi-folding doors can be quite confusing and despite their popularity they cannot be used in every situation.

At Clear View, leading providers of aluminium windows and doors across the whole of the UK, we believe that our customers should be informed of the technical data which could help them make a decision.

As a result, our team of manufacturers and installers have come up with a short guide to explain some of the technical information which should help you understand the composition of a bifolding door.

There are currently a lot of options available on the market and the come with very different levels of hardware. Some of these terms are listed below.

The Lead Door

Bi-folding door configurations can come in a variety of choice. The doors will either slide back all one way (either left or right) or you could have split bi-folds where half the doors go one way and the other half the other. You can also have a lead door that hinges one way whilst the remaining doors slide in the opposite direction. A lead door is particularly useful if this is the only access point to your garden.

The Main Handle

The main handle is referred to as the point where the main multi-point locking and lift handles are fitted. All additional rods are attached to this point and this is lockable on most doors by a key.

The track

Much like a racing track, this is the preferred and only line the doors should be taking. These are put at the top and the bottom of the door and ensure the easy opening and closing of the door at all times, guiding them forward and backwards. If there is an issue with your track then the door will not run smoothly.

The threshold

Usually there are two types of threshold with a standards step and then a lower profile type available. Only a standard step has weather resistance and should always be used for external doors. For internal doors you can have a lower version.

For more information on the technical terms regarding bi-folding doors, please do not hesitate to contact our staff members today.


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