Description
Black uPVC Patio Door – 4 Pane Sliding Design
Four panels in Black is about as much of a statement as a patio door can make — two sliding centre sections, two fixed side panels, and a colour that turns the whole opening into a deliberate design feature rather than a functional afterthought.
At full width, Black reads as genuinely architectural — a strong, high-contrast frame against pale brick or render that's become one of the most requested finishes for modern extensions specifically because it doesn't try to blend in.
Living With It Day to Day
The two centre panels each slide independently, giving flexible day-to-day use without needing the full width open every time — the fixed outer panels simply add scale and light.
The Numbers Behind the Comfort
70mm of thermally broken frame runs across all four sections without interruption, and the u-value holds consistent whether the glass in front of you is moving or fixed.
Locked Down Properly
Both sliding panels carry multipoint locking and anti-lift protection; the fixed panels are internally glazed, closing off any obvious access point on either side of the opening.
Built to Fit, Not Fitted to a Standard
A four-panel door this size is manufactured entirely around your opening — there's no stock size at this scale that would reliably fit.
Standard Specification
- Multipoint locking system to BS3621
- Key/key cylinder with 3 keys
- Double glazed 28mm toughened energy saving safety glass units to BSEN1279 and BSEN12150
- Black warm edge superspacer bar between glass units
- High performance (patented) double-action ‘bubble’ gaskets maintain tight weather seals
- Unique ‘glazing flipper’ reduces cold transfer, water ingress and noise pollution
- 70mm thermal efficient multi chamber upvc frame
- Internally beaded for maximum security
- Fully sculptured energy efficient profile
- Fully compliant with the Part L Building Regulations
- 10 year profile guarantee
Dimensions
- Frame Width (min-max): 2900mm – 4000mm
- Frame Height (min-max): 1900mm – 2400mm
