How much does a 40 x 60 concrete slab cost? Real Contractor’s Price

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Phil Puccio

The base cost of a 40 x 60 foot, 6 inch thick concrete slab ranges from $6 to $8 per square foot.

That works out to between $14,400.00 – $19,200.00 depending on the cost of materials and labor in your area.

What does my price include:

  • Work to set up the forms with 2 x 6’s
  • 3000 psi concrete with 3/4″ brick that is 6″ thick
  • Wire mesh or fibermesh reinforcement
  • Double row of reinforcing bars on the edges
  • Work to pour the concrete slab
  • Work to smooth the concrete
  • Sawn contraction joints (to control shrinkage cracks)
  • Anchor bolts installed (if desired)
  • 6 mil poly vapor barrier

How much would a 40′ x 60′ concrete slab that is 4 inches thick cost?

All else being equal and you just compare the cost of a 6″ vs. a 4″ disk, the cost would drop by about $2000.00.

This is because you use about 16 cubic yards LESS on a 4″ slab compared to a 6″ slab. You save the cost of using less concrete.

I base my number on a price of $120 per cubic yard of concrete and round it up to 2000.

Material costs vs. labor costs

The cost of 3000 psi of concrete per yard is generally $115.00 per cubic yard. (Prices vary in your region, check with your local ready mix supplier) $2.25 per square foot

Lightweight chicken wire generally costs about $8.00 for a 5′ x 10′ sheet. $0.18 per square foot

Fibermesh in concrete costs $5 to $8 per cubic yard of concrete $0.13 per square foot

#4 or 1/2″ rebar costs about $8 per 20 foot piece (21 pieces) $0.07 per square foot

50 anchor bolts that are 6 inches long cost $75 $0.03 per square foot

1.25 rolls of 20′ x 100′ 6 mil poly vapor barrier $125.00 $0.05 per square foot

Total Material Cost: $2.71 per square foot

The labor cost of forming, casting, finishing and sawing the panel makes up the remainder or about $3.30 – $5.30 per square foot

Use my 40’x60′ concrete slab cost as a general guide to do your research and expect higher or lower prices where you live.

Which costs are not included in my prices:

My concrete slab prices above do not include the following things:

  • Cost of preparing the gravel under the slab
  • Building permits or underground testing required beforehand
  • Styrofoam under the top (can add up to $2.25 per square foot to the total price)
  • Thickened edges or thicker areas in the panel required to support more weight (could add $1 to $1.50 per square foot to the price)
  • Installing a floor drain or other type of drainage

Estimate your concrete slab cost

Using my concrete slab prices above will give you an accurate estimate of your actual slab cost.

Depending on who you get quotes from, your contractor could have much higher labor costs, material costs, and profit margins than I do.

I would recommend getting 3 estimates if you can. One of the best ways to find concrete panel builders in your area is to contact your local concrete supplier.

These are the companies that supply concrete to contractors like me. You know who the better concrete slab installers are in your area.

Google “precast concrete near me” and a list of concrete companies will come up.

Call 1 or 2 of them and ask about the best types of concrete slabs they ship concrete to.

Ask each contact the cost of their 40×60 concrete slab and make sure you compare prices to the same specs to get accurate estimates.

how to pour a concrete slab

In the video below, I’m installing a 40′ x 50′ concrete slab for a customer. I would cast a 40 x 60 slab the same way.

This board has 12 inch thick edges which adds to the overall cost as I said above.

Attention: 40 x 60 slabs cost from other “home” sites

Be careful using disk cost information from some of the “HOME” sites on the Internet.

I looked at their “concrete slab cost” for a 40×60 slab and the prices were everywhere. I would say they are not very precise and don’t really articulate what the real cost would be.

I’m not sure where they get their cost or price from, but it’s not from an actual concrete contractor like me.

However, use my plate cost as a guide only. I live in Maine and the cost of living here is different than NY, CA, FL or any other state.

My aim is to give you just some information as a basis for the cost of a concrete slab of a given size.


How much does a 30 x 30 meter concrete slab cost?

How to calculate the cost of a concrete slab.

Check out more of my concrete slab videos

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