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Greenhouse advice

I'm looking to buy a 6 x 8 greenhouse but I'm getting confused about how best to stablise it and whether I definitely need concrete. I've identified an area in the corner of my garden, which I'm currently clearing and levelling so it'll be just compacted soil.

I've been looking at greenhouses Greenhousepeople are selling and they seem to come with galvanised bases, which it says include soil anchors. But I've read quite a lot of contrasting info on whether one of these bases on soil is stable enough, or whether ideally I need to dig down a couple of feet, fill with hardcore, put down slabs and then fix the galvanised base into them.

Soil anchors seem a lot simpler / quicker - but how risky would this be?

Thanks all!


  • Dave MorganDave Morgan Posts: 3,123

    If your garden is exposed and gets lots of wind you'd need a solid base. If it's not the aluminium bases are perfectly acceptable.

  • LynLyn Posts: 23,082

    I wouldn't sit it straight on that frame into the soil. Mine would be long gone.

    I have two that are sitting on concrete  blocks, one has slabs inside, one has raised beds for tomatoes. The other one is just bolted onto the galvanised frame then into patio slabs, it's stayed there for five years so far. 

    absolutely no need to dig down like that for footings, if you feel you want to, then dig down and sink a line of concrete blocks in, then anchor with your frame. My dad only raised his first two on the blocks because he was tall and it gave him more head room. They have stood there like that for 30 years, and will continue to do so.

    Gardening on the wild, windy west side of Dartmoor. 

  • Bf206Bf206 Posts: 234

    Ok thanks guys. Actually someone v helpful from Greenhousepeople got back to me just now and said there's lots of conflicting info out there... He said some manufacturers say it's fine to fix into the soil but, as you guys are saying, he advised against.

    He didn't think digging down too far and filling with hardcore was necessary though and that paving stones laid over a few inches of sand/cement on top of the soil would do.

    I think that's probably the route I'll go down...

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