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Alexandra Giles

Alexandra works in the marketing department, and in 2014, bought her first house, which turned out to be somewhat of a ‘project’. Since then, the whole house has needed renovating, which has helped her gain a knowledge of basic DIY, decorating and making the best of a small space.

By Alexandra Giles
4.23 Average 573 Reviews

Doors and window companies are potentially missing out on huge amounts of traffic to their websites by isolating a large sector of the market, due to different usage of terminology. Almost two-thirds of consumers searching for bi-fold doors online are unaware of the product’s true name, leading to over 34,000 fruitless searches for the product every month.


We surveyed 500 people and asked them to tell us what type of door this is in the picture below.

The industry term for the doors is ‘bi-fold’, but only 36% of consumers surveyed chose this answer. Other terms consumers used to describe the doors included folding track doors, concertina doors, zig zag doors, accordion doors and sliding doors.

What Do Your Customers Call a Bi-Fold Door?

If we take a closer look at what consumers call bi-fold doors, it’s clear that the folding mechanism is the main identifier.

36% - BI-FOLD DOOR

The dictionary definition of bi-fold is ‘designed to fold twice’. This is the most common industry term for the doors.

19% - FOLDING TRACK DOOR

The doors run along a track and trolley system, when they fold, unfold and slide.

14% - CONCERTINA DOOR

An instrument that uses a bellows system to create music, the instrument expands and contracts in a zig zag motion.

14% - ZIG ZAG DOOR

The shape the doors create when folded back.

9% - SLIDING DOOR

Bi-fold doors do slide, but in the industry, sliding doors refers to doors that open by one large pane of glass sliding behind another.

8% - ACCORDION DOOR

As with concertinas, accordions expand and contract in a zig zag motion to create music.

What makes the Origin Bi-Folding Door special?

The Origin Bi-fold Door provides style, sophistication and security to a home. Manufactured in Britain exclusively by Origin, every door is tailor made using a premium grade aluminium for strong, yet slim sightlines and a flawless operation.

Using the very latest technology in high security multi-point locking systems, Origin is able to guarantee faultless performance for at least 20 years. Available on our Your Lead Time, Not Ours delivery promise, with Origin, you can specify with confidence. To start specifying Origin, please click here.