Timber gazebo

ExperimentalUpdated: 2026-10-18

Structure

120×120 posts stand around the perimeter no more than 3 m apart, carrying double beams, rafters every 600 mm and a ridge. The roof is gable or mono-pitch; the covering is bitumen shingles on boards, steel sheet or polycarbonate on battens.

These sections are market practice (the most popular 3×3 and 3×4 m gazebos), not a calculation. The system does not check snow and wind loads, so consult a structural engineer before building.

3 × 4 m gazebo: gable roof with bitumen shingles, deck floor, low walls · View generated by Statyk from sample parameters.

Footings, floor, low walls

- Under each post: a concrete pad footing with a post base, a screw pile or a concrete block.

- Floor: deck boards on joists, paving or lawn.

- Decorative low walls on three sides; the entrance is left open at the front.

4 × 6 m gazebo: mono-pitch polycarbonate roof, paved floor, open on all sides · View generated by Statyk from sample parameters.

Regulations and distances

- A gazebo is an engineering structure. Its group follows K = S × H³ (S — roof projection with overhangs, H — ridge height): if K < 10 it is not a structure; up to 10,000 it is group I (STR 1.01.03:2017).

- A roofed structure closer than 1 m to the plot boundary always needs the neighbour's consent. At 1–3 m, consent is needed if the height exceeds the distance to the boundary (STR 1.05.01:2017 Annex 7). The system works out how far away to build so that no consent is needed.

- Posts in a simple structure are at most 6 m apart (STR 1.01.03:2017 item 31).

Start with this example

Example project: drawings and material quantities