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digging 30+ holes
I think there are some contributors to this thread today who have the requisite skills ;)
How big is this shed? 30+ sounds like a lot.
Didn't Ali Dymock use something like 9 or 12 brick plinths? I thought the concrete tubes replaced those, so surely you're looking at a similar number.
hugo7-
I have no idea. I have aggregated some of the ground screw calculators to get to that number. Shed will likely be 18' x 12' and a lot of timber. Maybe.
Edit: ground screws on 3ft centres would mean 35 screws. Not sure how you calculate for piers, especially if suspended off threaded bar on top as suggested.
stevo_com
The prospect of digging 30+ holes for forms doesn't give me a warm glow, despite how warm it would make me in the process.
I may buy a few screws and see how they go into the ground in what I assume will be the worst spots. And if that goes swimmingly, get the rest.
Either way, I still have a bit more clearing and leveling to do. I have grown weary of the constant weed and bramble pulling so have ordered a weed sprayer for A short term thermonuclear approach. Probably undoing the ecological benefits of screws over concrete.