Rough Foundation Cost?

[Hay Dude]

Do you want 12” block walls, or poured walls? Do you want the block grouted solid?
I’m over 20k to do that job with excavation, damp proofing, insulation and backfill.
Labor & materials.

 

[jjeff]

Do you want 12” block walls, or poured walls? Do you want the block grouted solid?
I’m over 20k to do that job with excavation, damp proofing, insulation and backfill.
Labor & materials.

Would you allow a knowledgeable homeowner to be there own general giving them a broken down estimate, do the excavation, compaction, backfill, waterproofing, insulation and possibly help move and set those heavy a## prefab forms, help pour the walls, etc provided they take partial or full liability for defects?

 

[Jchonline]

True there are lots of factors, I think he was looking for a rough estimate, I disagree comments don't matter how many folks on here have heard of or used a conveyer truck? Contractors can upcharge everything including concrete. it might cost a homeowner 135 a yard for a 3 bag, one contractor gets it for 100 another charges 200 a yard not including the labor to pour it.. the point I was trying to make there are ways to work around logistical challenges, and higher prices as long as your somewhat knowledgeable, semi skilled and the contractor wants to work with you especially in these times when they are back logged, understaffed and overworked . In my area 7 yrs ago a pump truck would have cost me an extra 2k because of travel and availability a conveyor truck located in the area that carried 7 yards of concrete was that much cheaper (saved me on the cost for another truck traveling over 20 miles also) and it could still place the concrete where I needed it.

I might have missed it but I didn't see the OP say they wanted to do some the work themselves. To your point on contractor variability this is also why I recommended to get a bunch of quotes. If you aren't doing the work yourself then it doesn't matter what anyone here says...you are going to pay what you get the best deal for locally. That might be 5k where you are, and 20k where I am. Point is it won't help the OP if they are living in a different city/state. With regulations, local codes, etc there are just too many variables. It isn't like we are ordering it online.

 

[Hay Dude]

Would you allow a knowledgeable homeowner to be there own general giving them a broken down estimate, do the excavation, compaction, backfill, waterproofing, insulation and possibly help move and set those heavy a## prefab forms, help pour the walls, etc provided they take partial or full liability for defects?

No offense, but nope.
Been there done that. It was not beneficial to either of us.
You could probably find a poured walls company who will, though.

 

[Jchonline]

No offense, but nope.
Been there done that. It was not beneficial to either of us.
You could probably find a poured walls company who will, though.

I assume this is because it ends up costing your more time dealing with someone that doesn’t have all of the tools or experience? Just requesting some additional info…it does make sense to me. I would not allow a homeowner to do that much work as a contractor either.

 

[Hay Dude]

I assume this is because it ends up costing your more time dealing with someone that doesn’t have all of the tools or experience? Just requesting some additional info…it does make sense to me. I would not allow a homeowner to do that much work as a contractor either.

Yes. Scheduling and organizing would take too long to create a seamless, profitable working environment

 

[jjeff]

I might have missed it but I didn't see the OP say they wanted to do some the work themselves. To your point on contractor variability this is also why I recommended to get a bunch of quotes. If you aren't doing the work yourself then it doesn't matter what anyone here says...you are going to pay what you get the best deal for locally. That might be 5k where you are, and 20k where I am. Point is it won't help the OP if they are living in a different city/state. With regulations, local codes, etc there are just too many variables. It isn't like we are ordering it onli

No offense, but nope.
Been there done that. It was not beneficial to either of us.
You could probably find a poured walls company who will, though.

None taken what so ever. Prepping a site, grading, and actually doing footers/ pouring walls, laying block, for a foundation can be a big undertaking most cant do and shouldn't try.

 

[MossRoad]

What am I missing here?
The question in the OP was:

"what would the average foundation cost be for a 14×28 foundation? Would only need to be 3 sided as it’s an addition"

$15-$20K for a 14' X 28' slab on 48" foundation that's only three sides?

The OP later explained it was two 28' sides and one 14' side. That's 70' of 48" foundation, plus 392 square feet of slab.

I had quotes for 96' of 48" foundation and 576 square feet of slab for $8K.

What did I miss?
Thanks.

 

[Snobdds]

What am I missing here?
The question in the OP was:

"what would the average foundation cost be for a 14×28 foundation? Would only need to be 3 sided as it’s an addition"

$15-$20K for a 14' X 28' slab on 48" foundation that's only three sides?

The OP later explained it was two 28' sides and one 14' side. That's 70' of 48" foundation, plus 392 square feet of slab.

I had quotes for 96' of 48" foundation and 576 square feet of slab for $8K.

What did I miss?
Thanks.

The 2021 economy...

 

[Hay Dude]

What am I missing here?
The question in the OP was:

"what would the average foundation cost be for a 14×28 foundation? Would only need to be 3 sided as it’s an addition"

$15-$20K for a 14' X 28' slab on 48" foundation that's only three sides?

The OP later explained it was two 28' sides and one 14' side. That's 70' of 48" foundation, plus 392 square feet of slab.

I had quotes for 96' of 48" foundation and 576 square feet of slab for $8K.

What did I miss?
Thanks.

Excavation, tie into existing walls, insulation, damp proof, back fill, inspections, permits, 48” wall forms much easier than 8’ tall walls
that’s what you missed so far. Probably more. 48” walls can be 8”. C
However, I assumed he needed all that. Later I found out he wanted to do a lot himself