How thick does the concrete for my shed floor need to be?

Question

I am looking to build a 4x4 shed to house a safe. I'm not sure of its weight, but from what I can find on the internet it's 1500-3000 pounds. How thick will a concrete floor have to be to support the safe? Do I need to make a "foundation" with some sort of aggregate? Will pig wire do for reinforcement? (I already have a roll of it, so it could save me a little money)

Jeffy. · Accepted Answer

4 inches is fine and you won't need a footer.

Bob · Answer

four inches will hold a car (garage specs).

you would need to pour a 12 in perimeter of concrete, deep enough so it goes beneath the freeze line in your soil (called a footer).

when you excavate the area and level it, pour an aggregate of crushed stone (stone supplier will tell you what size & how deep) to rest beneath the slab.

William B · Answer

i would dig a hole 1 ft deep, add pea gravel   4 inches deep 
  pour it at 6 inches  with #6 slump mix [foundation mix] 
at a rating of 4,000 lb mix

ROGER G · Answer

four inches

Trending News

How thick does the concrete for my shed floor need to be?

4 Answers