PRO ground screws
Ø 89 or 114 mm with a 220 mm head plate and M24 bolt, under every post.
Pergola foundation
A pergola or canopy without concrete pads
A pergola or canopy stands on a few posts but catches a lot of wind. Ground screws with a head plate replace the concrete pads: the posts are bolted on straight away.
Why no concrete?
- No holes to dig and no concrete pads
- Posts bolted on at once, no curing time
- Strong in tension: holds the canopy down in wind
- Also on a terrace or next to a driveway
- Removable if the pergola ever moves
Which foundation?
LGT ground screws
For an open timber pergola, lighter LGT screws are often enough.
Wind
A closed canopy or louvred roof gets uplift from the wind. We take that into account in your quote.
How it works
How it works on site
- Setting outWe set out the posts.
- Screwing inOne ground screw per post, by hand-held machine or compact tracked machine.
- To levelAll head plates at the same height.
- BuildingThe posts are bolted on straight away.
Frequently asked questions
How many ground screws does a pergola need?
Usually one per post. The pile calculator gives an indication for your dimensions.
Can a pergola go on an existing terrace?
Often yes: we screw between or next to the tiles or boards, depending on the build-up.
Is wind a problem?
Ground screws are strong in tension. With a closed roof we take the uplift into account.
Ready for your project?
Send us the dimensions or a plan. We reply within two working days.
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