Rebar Sizing

[sharage71]

Hey guys,

What's everybody think about using 3/8" rebar spaced at 2' with 3500 lb concrete with leftover remesh thrown in? Think it will hold up or should I tighten the spacing to 18". The shop will be 24 x 30. I'm using 5/8 in the footings. Holler back ya'll

Foster

 

[petty4243]

I would go 18" with 3/8 or every 2' with 1/2

 

[rburke65]

I am sure, somewhere, there are codes for this.....in my opinion.

 

[ttuhawk]

IIRC 18" is the max spacing allowd by ACI318 but its been a while since I took that course, I'll dig through and try to find my code book

 

[Torque1st]

It depends on the type of concrete, load placed on the concrete, and the substrate under it. If you really want to know if it will "hold up" contact a civil or structural engineer, or an architect.

 

[sberry]

The cost for a bit more rod in a building that size would be rather insignificant, a little overkill would be cheaper than engineering.