09:40AM | 02/04/03
Member Since: 02/03/03
2 lifetime posts
We are trying to budget costs for building a 22x24 detached garage. The ground is very level but we have no idea what a foundation will cost. Our town requires 30"'s i believe for footings/block. We would appreciate any thoughts as to what a foundation/slab floor would cost for a structure like this.

Any response is greatly appreciated.

Thanks in advance.


Bob Jr

12:21PM | 02/04/03
Member Since: 01/19/03
44 lifetime posts
In my part of the country we go 54" for footings, to get below the frost and they run $36 per linear foot. You have 92 ft ($3312). I put it in high enough out of the ground and poured the slab so the foundation serves as a curb for inside the garage. Water dripping from vehicles don't contact the wood plate or your finish material inside the garage.

The floors I don't know because I paid a guy $200 for a day and he brought all the tools and supervised us, I provided additional help from friends, I bought the concrete.

Garage slab like that would be maybe around $2000 or less, labor and all. You can easily figure $5000 for concrete in a garage then you need to factor in your approach and some codes require a concrete drive all the way out to the street.

My brother bought a $2900 garage kit from ******* and had $10,000 invested when it was done. And done wasn't finished on the inside. That's another whole episode.


02:45AM | 02/07/03
Member Since: 01/28/03
693 lifetime posts
In my area, excavation, footer, foundation, grading, fill, slab, and backfill costs for this garage would be about $6000US.

You can typically figure foundation/slab to be about 40% of total garage costs.


03:17AM | 02/07/03
Member Since: 02/03/03
2 lifetime posts
Thank you for your response! Here we thought a detached would be relatively inexpensive but are finding out that's not the case.

Thanks again and once this job is completed I'll everyone know what this ended up costing us.


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