Starting a garage build, slab cost?

[zeekh]

So I'm gearing up for a garage build this summer. I curious what costs of things are around the country. So I'll start out with the slab. I'm planning a 24' x 40' x 6" Alaskan slab. What do you all figure it would cost in your area? I'm contacting a few guys tomorrow to start getting quotes. I'll probably put radiant heat in the floors and drains for a small bathroom in the distant future.

 

[darwyn]

I priced a 30x40 with in floor heat last year, I don't recall the thickness. This was for a stick built so it included a footer, and there was dirt work to level things out. $22k.

 

[zeekh]

Thanks. I'm thinking Alaskan slab so not footer just extra thick edges.

 

[Kaizen]

My 30x36x6 4K psi with thickened edge and fiber was about 8k with two k adder for site work. No steel in the field. Also had one foot knee wall after in that price. Cut it myself. I had two other quotes of twelve and 13k from other contractors just for concrete. Ridiculous.


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[matt_i]

I paid $1500 cash for my slab 25x40x 6", that is for labor only to place and finish, and included saw cutting the joints. I supplied all the rest of the materials (washed stone, vapor barrier, chairs, #4 rebar @ 16" o.c., curing sealer) and associated other prep work like compaction.

Concrete (4ksi no fibers) roughly 20yd was around $2k and the pump truck was $800.

I'm guessing I had $800 in rebar, $150 in chairs and $800 in washed stone, $150 in the extra heavy vapor barrier, curing sealer 5gal was around $150 as well. Rented a plate compactor and a jumping jack as well, $50-60 each for a day.

So in the neighborhood of $6500-7000.

 

[darwyn]

My 30x36x6 4K psi with thickened edge and fiber was about 8k with two k adder for site work. No steel in the field. Also had one foot knee wall after in that price. Cut it myself. I had two other quotes of twelve and 13k from other contractors just for concrete. Ridiculous.


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Ridiculous? Look at my post, I would gladly pay that.

 

[n20junkie]

My 30x50 foundation in WNY cost 10k and the floor cost 12k for a 4k mix, 6" thick, 1/2 rebar on 24" centers with a machine burnished finish and cut joints.

 

[classic boost]

5yrs ago, 32x40 4" thick w/mesh was $4k.

 

[kmacht]

Getting ready to pull the trigger on a barn build here in CT. Here is what the approximate costs are for the foundation. Note that the site drops about 2' from one side to the other. The barn will be 30x36

Site work $4800 - This includes stumping, digging the foundation, backfilling for the floor, and grading the site

Concrete footers & walls - $5200

Concrete slab (only 20x36 because the other 10' will be left as dirt for the horse stalls) - $2200

The kicker is that we also have to spend another $4400 to put in a gravel road from the front of our house to where we want the barn. There is too much of a hill for the concrete truck to drive up to the site and by the time we paid for a pumper to come three times (footings, wall, slab) we would be pretty close to the price of just pitting in the road.

Concrete around here is about $125 a yard so they are charging about double that for the flat work which seems to be the norm.

Keith

 

[n20junkie]

I agree that the concrete here is $130 ish a yard, and double that for a proper team of guys to finish it properly.

 

[FearTheH]

Concrete here is between 90 and 100 per yard. Best bet(what I'm doing also) is to make friends with a concrete guy, not a business owner but the actual laborer and entice him with some side work...things get a lot cheaper that way.

 

[Kaizen]

Ridiculous? Look at my post, I would gladly pay that.

Your quote was ludicrous. I don't mind paying for work but six grand a day is just being raped


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