
Bifold Doors
4 Panel Bifold Doors
About 4 Panel Bifold Doors
A 4 panel bifold door suits openings of about 2.4 to 3.2 metres, the typical width of a single-storey rear extension or an open-plan kitchen and living room. There are two common layouts. A 3+1 split folds three panels one way and leaves the fourth as a traffic door for everyday use. A 2+2 split opens from the centre, with two panels folding to each side, which frames a view or a garden path symmetrically. Every set is made to measure in aluminium, opening inward or outward, with flush or weathered thresholds, multi-point locking and toughened safety glass. Our guide price is £3,800 to £6,000 supplied and fitted including VAT. Above about 3.2 metres, a 5 panel set keeps each panel to a manageable size.
Guide price · up to 3.2m wide
£3,800 – £6,000
Supplied and fitted, including VAT. Final price depends on size, glazing, finish and door system. Compare every panel count in the bifold price guide or get an exact quote.
Last reviewed 2 November 2026
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Every set is made to measure, so the only way to a real number is your sizes. Free survey and quotation, no obligation.
Key features
- For openings of about 2.4m to 3.2m
- 3+1 split with a traffic door, or 2+2 opening from the centre
- Suits single-storey rear extensions and open-plan living
- Inward or outward opening
- Flush or weathered thresholds
- Anthracite grey, black, white or dual-colour finishes
- Double glazing as standard; triple glazing and integrated blinds available
- Multi-point locking and toughened safety glass

Specifications
Frequently asked questions
Common questions about 4 Panel Bifold Doors.
What size opening suits a 4 panel bifold door?
About 2.4m to 3.2m wide, the typical width of a single-storey rear extension. Above about 3.2m, a 5 panel set keeps each panel to a manageable size.
Should a 4 panel bifold be 3+1 or 2+2?
A 3+1 split folds three panels one way and keeps the fourth as a traffic door for everyday use. A 2+2 split opens from the centre, with two panels folding to each side, which frames a view or a garden path symmetrically.
How much does a 4 panel bifold door cost?
Our guide price is £3,800 to £6,000 supplied and fitted including VAT. The final price depends on the size, system, glazing and finish.
Which systems are 4 panel bifolds available in?
Schüco and Cortizo aluminium bifold systems, all made to measure. We recommend the system for your opening, budget and threshold when we survey.
How do I get a quote?
Quotes are free. Send your opening width and height through the contact form or call 0800 999 5575, and we will arrange a survey. Supply only is also available.
Interested in 4 Panel Bifold Doors?
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