Aluminium Louvred Pergola 4m x 3m — Adjustable Roof, Matt Charcoal

The 4m x 3m is the size most people actually need — a rectangular footprint that runs along the back of the house or the long edge of a patio and covers a full dining set with room to walk around it. The louvred roof adjusts through its full range, so the same structure gives you open sky in the evening, angled shade over lunch, and a closed roof when the rain comes in sideways.

Everything structural is corrosion-resistant aluminium: 116mm square posts anchoring each corner, 195mm x 75mm beams carrying the span, and precisely engineered 166mm x 30mm louvres above. The hidden fixings keep the finish clean and architectural, which is why it sits as happily against a modern extension as it does at the end of an older garden. There's no annual treatment to keep on top of and the UV-stable coating won't fade back over a few seasons.

At 4,000mm x 3,080mm and 2,520mm high it works as hard commercially as it does domestically — this is the size that suits a café frontage or a pub garden as readily as a family patio. Backed by a 10-year structural guarantee, with fast, bolt-together installation.

Dimensions: 4000mm (w) x 3080mm (d) x 2520mm (h). Louvres 166mm x 30mm. Beams 195mm x 75mm. Posts 116mm x 116mm.