How to light a pergola or covered patio

Quick answer: run the cable along the outer beam, not across the middle, hang at 2.1–2.4 m so nobody's head touches it, and work out the length as the route the cable follows × 1.3 — a typical pergola span needs 8–12 m.

1. Follow the structure, not the space

Pergola lighting looks deliberate when the cable follows the beams. Zig-zag between rafters for a canopy effect, run a single line along the outer beam for a clean edge, or wrap the posts for vertical interest. What looks accidental is a cable cutting diagonally across open space.

2. Height and clearance

• 2.1–2.4 m above the floor so people walk under without ducking.
• On a low pergola, run the cable along the underside of the beam rather than hanging drops.
• Keep drops clear of doors, blinds and any moving furniture.

3. How many metres

Measure up, across and down, then add about 10% for corners and tie-offs. Multiply a straight span by roughly 1.3 to account for the sag between fixing points. More detail in the length guide.

4. Choose the light for the job

• Festoon with larger globes: the classic pergola look; wide spacing, visible bulbs. Festoon & string lights
• Fairy strands: better for wrapping posts and rafters; the light disappears into the structure.
• Hanging globes or drops: for a table underneath, so light lands on the surface rather than the ceiling.
• Solar: only if the panel can sit on the roof or an edge in direct sun — a shaded pergola roof will not charge it. See solar vs plug-in.

5. Power and safety

• Keep the plug under cover, above ground, out of standing water.
• Fix cables with clips rated for outdoor use; cable ties degrade in UV.
• Check the run at the start of each season — a flickering section is usually a connector, not a bulb.

6. Finish it

One temperature across the whole structure, one accent piece at most, and a dimmer or remote if you will use the space after dinner. Browse patio & garden lighting for the full range.