Cost of concrete shed floor?

I'm having a hard time getting an estimate on a machine-shed floor. ("We'll get back to you in a week or so....") The shed is in southern Minnesota. It is only a few years old and in great shape. It is the typical pole frame with metal sides and roof and a crushed-rock floor. It measures 40x72.

My question: Assuming a level floor, how much should I expect to spend for a 40x26-foot x 6-inch slab in one end of the shed? I know additional rock fill and compacting would add to the cost, and it might require some wheel-barrowing to get the mud into the far corners. I don't mind an estimate that's off by even low thousands. I'm just wondering about the basics: rebar, mesh, concrete and labor. I know sight-unseen is hard to do, but I would be grateful for ANY educated guesses you might offer on a 40x26 with 6-inch reinforced concrete. (I can provide more info if needed.)
 
You will need approx. 36 yards. Call your local cement place and ask them how much for that amount delivered and poured. DOUBLE that amount and you should be close. You may not need re barb as they pour concrete with some stuff in it that really strengthen the concrete now. Basically depends on how thick you want it but your concrete person can inform you of that. good luck norm
 
Not enough information. How big is "in one end"??and how much wheel-barrowing??
I used to estimate smaller concrete slabs at 2X the total cost of all the materials. 2X the total cost of all the rock, concrete, rebar, mesh, etc. And that was IF IF a concrete truck could back right up to the slab. Hand-finish it? Or power trowel it? Not enough info.
 
Thanks for your reply. As my post said, "one end" would be 40x26 x 6 inches thick. I can't guess at how much barrowing, but that's why I said I don't mind an estimate within a few thousand. I don't care if hand-troweled or power-troweled, as long as I can roll small tractors and tools around on it. I just need to know if I would be looking at $10,000 or $30,000 or ???. I understand that's why I really need to get a local contractor to give me an eyes-on estimate. So far all I've had are promises of "next week."
 
40 x 72 = 2880 sq.ft. x .5" = 1440 cu ft 1440/27 cu.ft.per yard = 53.33 cu.yds.x local concrete price per cu. yd. = material cost. guess $100 per yard = $5333.00 material cost.

40 x 26 = 1040 sq.ft. x .5 = 520 cu. ft./27 cu. ft. per yard = 19.25 cu.yds. x local concrete price = material cost, guess $100 per yard = $1925.00

Round upward for percentage of waste or oversize form (sub grade is off etc.)
Labor will vary, how much a person per day, form, place, finish, also subgrade labor if any.

Reinforcing is by weight, figure at least .65/lb. or higher as necessary. Size of deformed metal bar or woven wire mesh gauge will determine weight, just figure the footage and multiply by whatever unit of measure.

It's not the hardest or most complicated thing to do, but if a novice, better to have experienced hands form, place finish etc.

Consider all below slab considerations, pipe, conduit, drains, future uses etc.


You may very well do much better on the entire cost of the job by buying material, doing what you can yourself, or whole job if capable and can assemble a small crew etc. I'd still compare contractor prices, see if it just pays to hire out. Hard to believe no one is responding, both are decent little jobs. I've done lots of similar jobs in this fashion, but did have access to experienced masons on all of them. Right out there with them boots for all of it start to finish. I like finishing, edging and such, seem to have a good eye for it.
 
My calculations are 19-20 yards locally it was $100 a yard (I am referring to cubic yard 3x3x3=27 sq feet. Now you always order extra to compensate for out of level etc. Are you doing a frost wall on the edges like 1 foot thick etc? Now this does not include labor just material, is a cement pump needed? You might get a fiber glassed reinforced to avoid steel wire or rebar. I would tell you to get a contractor but that does not seem to be working out. Sounds like you have the ones that want the easy jobs so they just put you off. I had a 16x24 done (similar to you with messed up floor it was $1200 cement and labor. They had to finish it by hand. Now here is the catch One friend is a good and big cement contractor and he would not take the job!!! The other friend is also a big contractor he said no problem and did it on a weekend.
 
Ready mix here in central TX is running $138 to 150 a yard. Special mixes higher. I paid $5200 for a 20 X 20 with beams to solid rock all around and one down the center and rebar (not wire).
 
Don't call a contractor call a concrete finisher two totally different things.Also most ready mix concrete companies will send out someone to check your job and give you an estimate as far as yardage and they'll have a list of finishers too.I used to do that all the time.That big of a slab requires a finisher with enough manpower and equipment to do it right.
 
Rossow if the contractors can't handle what you are describing YOU DON'T WANT THEM!!! We have had some put cement under buildings, jacked up, moved, cement pumping whole nine yards Large retaining walls, boom trucks etc. That would be an evening job for them.
 
Just a thought what are your future plans when i had mine done i also put plastic ,insulation and in floor heating pipes in a little extra but glad i did also how about drains? Mine doesn't but has good slope
 
Glad you are not buying concrete for me, figures just around 19 yds + or - a little did you double the estimate? Around here I could get the whole thing done for less than 5 thousand
 
I think 6" is too much. I built a bridge on my place with a 6" slab and had a cement truck drive over it with 10 yards of cement and it did fine. It needs to be thicker around the edges especially where a drive in door will be but the center you could do 4". Anyway at 6" thick you probably need to plan on 20 yards. It would be better when planning the floor to find out what the building codes are in your area. You might have to put down rock and some sand over the top if there is a lot of soil movement where you are and the building code would give specifications based on your soil.
 
As a yardstick, 3 or 4 years ago, I had a 4" floor poured in a 30'x48' pole building. The contractor took it from a bare dirt floor to finished concrete, with a 12'x24' slab in front of the main overhead door, for $6800.
 
I guess I did really well not so long ago. I did 48x27 plus a 24x12 apron on my dashed and thought it was under what you guys are saying.

Got a small town concrete guy, he replanted the outside for my barn rock foundation and patched up,some loose concrete in my house basement too.

Have a really good dirt/gravel guy, a bobcat is his third hand, he slings gravel around and levels it with the bucket, amazing to watch but stay out of the way, he gets things done right now!

Not sure how close you are, I believe my concrete guy is retired now, he was hinting that was his last year, but he had been hinting that for several....

Paul
 
I come out with 20 yards, my guess would be $140 per yard for concrete, same for labor, plus $1000 for the bed, so about $6K.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top