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Would you like to know how much a standard concrete slab costs?


In this post I will break down the costs associated with getting concrete work done. Please note these prices are a close approximation as every job is different and costs can go up and down by a number of factors. The cost of concrete also varies all around Canada. Here in Calgary Alberta its about $320 per Cm3 depending on the time of year and additives that are required because of weather.


At Envirocrete Inc. we are a small family run local business in Calgary, that specializes in custom concrete services and designs, we have over 30 years combined experience in residential and commercial concreting from all around the world. We have a pretty good idea about the whole concreting process from start to finish and what the main costs associated with getting great concrete work done.


The of the 4 most common concrete slab sizes we pour are:


1.) 30’ x 30’

2.) 30’ x 40’

3.) 30’ x 20’

4.) 24’ x 24’


If you require smaller sized concrete slabs 20' x 20' (400 sq. ft) and under check out this blog post Cost of small concrete work in Canada as it goes into the minimum costs in more depth.


What does a 30’ x 30’ concrete slab cost?


What we usually charge for a 900sq. ft slab @4” depth is $4 per sq. ft

So that works out to be 30’x 30’ = 900sq. ft

900 x 4 = $3600


What’s included in that price?


The labour and materials in the above price included are:


• Formwork lumber

• Steel Rebar

Rebar chairs (hold up steel and centre it in the concrete to prevent cracking)

• Labour to erect the formwork and bracing

• Labour to cut, place, and tie in all rebar

• Labour to place and finish concrete • Labour to strip and dismantle formwork

• Labour to saw cut in contraction joints (for crack prevention)




What will not be inclusive in that cost?


Earthworks, gravel placement and compaction.

What we usually charge for excavation @4” depth is $1 per sq. ft.

So that works out to be 30’x 30’ = 900 sq. ft

900 x 4 = $900


Gravel and Sub-base excavation

We usually get charged around $55 per yard for gravel so @4” deep

So that works out to be 30’x 30’ = 900 sq. ft

900 sq. ft = 8.5cm3 gravel

8.5 x 55 = $500 (tax included)





Calgary Concrete Costs


We usually get charged for concrete in Calgary Alberta (depending on time of the year) is $320 cm3.


So that works out to be 30’x 30’ = 900 sq. ft

900 = 8.5cm3 concrete

8.5 x 320 = $2856 (tax included)



So for a complete package with everything the costs work out to be:


Materials and Labour costs: $3600

Earth excavation and gravel placement and compaction: $1400

Concrete Price and cost: $2856

Total costs for a 30’x 30’ slab = $8250 (GST included)


Please note there are other factors that can increase the prices for more information click this link



Some other costs to consider


Footings/thickened edges around the slab. Usually for garage or house slabs they require more strength because of extra load from walls. Please check with you local council for footing depths as they can vary.

Here in Calgary its at least 48”x12” from top of concrete to footing depth for areas over 596 sq. ft or double story. This footing cost calculator can help you work out the additional costs.


In Canada allot of the slabs we do have thickened edges because of the freeze though cycles. Smaller slabs like concrete patios or sidewalks we can usually just use a strong sub-base compaction of thick gravel or brackets connecting to the house foundations.


The additional cost can be around $1- $2 sq. ft


Insulation Styrofoam that helps insulate the concrete floor especially if the slab has heating tubes built into it or in colder climates like Canada where insulation Styrofoam is required allot of the time.


The additional can be around $1.5- $2.5 sq. ft (installation included)

Some larger commercial concrete slabs will require a plastic membrane over the compacted gravel to keep all the moisture within the slab and act as a vapour barrier.


The additional cost is usually around $0.50 sq. ft (installation included)


What does a 30’ x 40’ concrete slab cost?

Based on our calculations above:


30’ x 40’ = 1200 sq. ft

Materials and Labour 1200 x $4 = $4800

Earthworks and Gravel = $1953

Concrete = $3680

Total costs = $10,935


What does a 30’ x 20’ concrete slab cost?

Based on our calculations above:


30’ x 20’ = 600 sq. ft

Materials and Labour 600 x $4 = $2400

Earthworks and Gravel = $980

Concrete = $2016

Total costs = $5666


What does a 24’ x 24’ concrete slab cost?

Based on our calculations above:

24’ x 24’ = 576 sq. ft

Materials and Labour 576 x $4 = $2304

Earthworks and Gravel = $925

Concrete = $1848

Total costs = $5075


If you would like to know more or if you have any questions please reach out and comment below. Looking more into other associated costs and into more depth we have this quick post that can save you money and help keep costs down Why is concrete work so expensive?



Some other questions our clients have asked:


What does it costs of small concrete work at home?

How concrete does concrete affect the environment?

Why does concrete crack?

How does the cold temperatures affect concrete?

Why is concrete work so expensive?




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403 956 9459

     

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Envirocrete Concrete Services Inc


 

Address : 730 Evanston DR NW
Calgary, Alberta


 

Phone : (403) 956 9459
 

Email: info@envirocrete.ca
 

Web : www.envirocrete.ca

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