Question: When building a shed base, what do put between the floor and a concrete slab? via /r/DIY


Question: When building a shed base, what do put between the floor and a concrete slab?

TLDR: I don’t know if I should place runners under a shed that will be placed on a concrete pad. I live in a hot humid swamp city.

I’m getting ready to build a shed floor for one of those metal arrow sheds, and I’m going to construct the foundation out of PT 2×6 and plywood, however I’m debating between putting the shed on a concrete pad I have in the backyard, or putting it on blocks in another part of the yard.

My only hesitation for putting the built shed base directly on the concrete is that the wood contacting cement will rot and my whole floor will rot. There would also be no ventilation under the shed. I live in a swamp so it’s very wet and humid.

I’d hate to waste a pre-laid concrete pad, but I don’t know what I should do.

A. Place 2×6 runners between the floor and the concrete pad. B. Place the floor directly on the concrete C. Forget the pad and just place the shed on blocks.

What do y’all think?

Submitted March 31, 2021 at 01:52PM by teachemup
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