badhaircut

What are my options for building a shed base in my backyard if there is about a 15-20 degree slope?

mark sr

Wood floor or concrete?


With a wood floor you'd just make sure the top of all the piers or posts are level with each other. With a concrete floor you'd excavate to make the area level and use block to get the wood framing above the highest portion of the grade.

badhaircut

Yes just a wood floor for a light duty shed. Would I have to dig post holes and add concrete or can I use those spikes?

mark sr

Not sure what the spikes are but the posts need to be stable, either by sinking them into the ground or pouring concrete footers with brackets to attach the posts to.

Nealtw

You didn't say what the shed was for or what size. If you are not worried about a little frost heave you could set it on simple concrete deck blocks. Can we assume the door will be on the high side of the hill?

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Do not use flat bottom gables with scissor trusses.

de-nagorg

Set it on C M U blocks.

Make sure that they are level with each other, then build the wood floor, then raise the walls and roof.

I have 5 built that way, for 30+ years now, I did use mobile home tie-downs to anchor them.

Due to high winds in the winter here.

You might need to bury the uphill C M Us, a little, to get them all level together, but an easy chore.

ED

lpranger467

This is what I did for my upcoming shed, about 5 yards of fill dirt, 3 yards of stone. Left to compact about 1.5 months. Will frame on top of 4 x 4 that I will lay on the gravel

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huesmann

When you say "left to compact" what do you mean? I don't see any surcharge there; it looks like it's pretty much at grade.