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Tarmetto
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# Posted: 2 Sep 2014 09:48am - Edited by: Tarmetto
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Trying to get an idea of cost for my budget.
20 x 34 perimeter footing, 6 block high, easy access, not remote, very slight slope (almost level), no rock to deal with, no trees/stumps in the way.
Has anybody done similar that can give me an idea of what this may cost?
I know there are a lot of factors involved, just trying to get an educated guess.
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Tarmetto
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# Posted: 2 Sep 2014 09:50am
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Oooops...posted this in the wrong section.
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toyota_mdt_tech
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# Posted: 2 Sep 2014 12:11pm - Edited by: toyota_mdt_tech
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My 16X18 cost for cement was $900, included delivery charge.
Labor was $2800, this was all set up, rebar and call in the inspector, signed off, then the pour, wait for set up, pulled off forms. Mine was a single pour, ie footing/stemwalls all done at once.
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Tarmetto
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# Posted: 2 Sep 2014 06:01pm
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Thanks! Is a single pour typically less expensive than footings and block?
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Don_P
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# Posted: 2 Sep 2014 07:18pm
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Probably not in SC, block is what you'll find more of in that region.
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bldginsp
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# Posted: 3 Sep 2014 08:43am
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A spread footing involves more labor and more concrete, so costs more. First you have to set all those forms. But with block the block itself is the form. The grout you pour into the block is far less in volume than the volume of a spread footing, so less material. You can mix the grout yourself with a small mixer.
Note there are different ways to do block. You can do block with no grout (worst), block with grout but no rebar (a little better), or block with grout and rebar (far the best). Rebar is easy but grout means you have to call the truck again or do a lot of mixing, so it is often avoided. Unreinforced masonry (no grout and rebar) is our worst nightmare here in earthquake country. If you are not in an earthquake zone, block with no grout and rebar is an option, but you still want to tie the building to the footings with bolts
Hope this isn't TMI
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TheCabinCalls
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# Posted: 3 Sep 2014 08:57am
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Do you have a frost line to deal with? So you'll need a footing, then 6 blocks high? Are you pouring a slab, needing drain tile, sump pump or radon system?
My guess having done a few of these would be you'd be between $4500 and $6500 to have it done by a company; excavation, footing, block wall, drain tile and slab interior. They would likely mix everything on site except the slab and footer.
Price depends on how many of these details you add and how busy the foundation crew is.
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Tarmetto
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# Posted: 3 Sep 2014 10:13am
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Quoting: TheCabinCalls Do you have a frost line to deal with? So you'll need a footing, then 6 blocks high? Are you pouring a slab, needing drain tile, sump pump or radon system? My guess having done a few of these would be you'd be between $4500 and $6500 to have it done by a company; excavation, footing, block wall, drain tile and slab interior. They would likely mix everything on site except the slab and footer. Price depends on how many of these details you add and how busy the foundation crew is.
No slab, no drain tile, no sump pump, will need pillars down the center for a beam to support the joists.
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Tarmetto
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# Posted: 3 Sep 2014 10:22am - Edited by: Tarmetto
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Oh, I'm not sure where the frost line is at this location. It's 30" up here at 2400' elevation, the cabin site is under 700' elevation with temps that average 15 degrees warmer.
Just found that the frost line is 10".
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Don_P
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# Posted: 3 Sep 2014 07:17pm
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Minimum footing depth is 12" below final grade, or, below frost line, whichever is deeper. So for you a 12" deep footing trench if the ground is perfectly level. If it is that easy you can dig it easily with a tiller. At that point with a typical 8" thick footing you can begin the block 4" below grade. The top of the foundation wall at that lowest corner is 44" above final grade max. You need at least 8", and preferrably more, above grade at the highest point in the final grade. The site cannot slope more than 30", preferrably less,to be able to create a drainage slope on the high side.
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Tarmetto
Member
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# Posted: 3 Sep 2014 07:33pm
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Thanks Don!
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SteveF
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# Posted: 19 Oct 2014 07:59am
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Not what your asking but may help others... I paid $160 a cement pier for my cottage which included excavation.
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