Building Homes or Extensions/slab

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Expert: - 3/24/2008


Question
Hi Dan, I'm am pouring a slab on grade foundation in western NC for my single story detached garage (20x30). I will be placing two row of 8" block and framing off that. Does code require re-bar extending out of the slab up into the block for the block to anchor to ? Thanks.

Answer
It sounds as if you are planning a level slab inside the garage.  It also sounds like you are setting the block on top of the slab.  I assume you have a foundation under this slab with reinforcing.  The bent bars should be tied in the footing steel and coming up in the block cells at 4' o.c..  I don't know your code, but I do know that Florida code requires strapping and anchoring studs to the foundation.  Your base plate will require j bolts at 4' o.c..  I suspect your inspector will want your blocks to be grout filled with horizontal steel.

I would prefer running perimeter block on the foundation and using it for the edge form for the slab.  This method would allow a sloped floor if desired.

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Dan Griffin

Expertise

I can answer almost all questions related to the total construction process. My expertise is in commercial construction, though I can field most any residential question. I have hands on experience in concrete, heavy equipment, masonry, all phases of carpentry, interior finishes, and I am fairly strong in mechanical and electrical.

Experience

I have over 20 years experience as a commercial carpenter and commercial construction superintendent. I have another 20 years experience in facility management for a major school district.

Organizations
My favorite hobby for he past 12 years has been singing bass in a The OkChorale men's barbershop chorus and the Mature Moments quartet.

Education/Credentials
I hold a Bachelor's degree in English and Math. I have completed many continuing education hours in the building trades. I hold a Master Carpenter card from the AGC, Associated General Contractors.

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