Calculating the pricing of new concrete construction is more than simply calculating the cost of concrete per yard or meter.
There are several elements to evaluate, including ground preparation, formwork, reinforcement materials, finish work, and the expense of ready-mix concrete, all of which will contribute to the overall cost of the construction.
Costs for certain things will differ from region to region or site. But you can acquire a ballpark figure by averaging the following figures:
No 1: Concrete Per Yard
The most significant factor to examine is the cost of concrete, whether you use ready-mix concrete or another type of concrete. After a description of job specs and identifying the job site, local ready-mix concrete companies give you quotations.
Concrete is usually priced by the cubic yard or cubic meter. You can consider $125 per cubic yard as an average estimate.
No 2: Sub-Grade Work
If you’re pouring concrete on top of the ground, you’ll have to level or prepare the area. This can include costs for grading, compacting soil, digging, trenching, and other elements.
You can take $50 to $70 per hour of work to ready the ground as a reasonable average. The cost may vary based on how much soil you need to transport. A tractor and driver are charged on an hourly basis.
No 3: Job Site Work
If the ground is not flat, you may have to pay for additional site work, such as digging and filling with an appropriate material or eliminating a soft point on the ground to make it structurally sound.
Depending on how far you are from where you will be supplying sand or other appropriate fill material, this might add $12 to $18 per cubic yard or meter to your quote. Another expense might be the polyurethane plastic or vapor barrier that must be built before the concrete is poured.
No 4: Formwork
Because creating concrete forms is among the most labor-intensive phases of the process. It normally contributes to a sizable amount of the entire cost of concrete construction.
You must choose the sort of formwork that will be utilized, how it will be placed, and if the form materials will be purchased or rented. Other expenditures may involve the usage of a crane or other tools to transport the form materials, form release product, reusing form materials, and the cost of repairing forms after multiple uses.
Formwork typically costs between $1.50 and $2 per square foot of concrete space. This is a rough estimate for a square or rectangular space. Concrete that is shaped or curved may demand more expensive formwork.
No 5: Reinforcement
Usually, concrete contains reinforcing, such as rebar, wire mesh, plastic mesh, or fiber, which is put into the concrete mix to boost strength and fracture protection.
Typical reinforcing materials can cost between $0.15 and $0.30 per square foot. This figure is greater when large-diameter rebar or other special reinforcement is used.
No 6: Concrete Finish
Concrete costs differ considerably based on the sort of finishing used in the project.
Concrete can be finished in various methods, including a smooth surface, an exposed aggregate surface, and a stamped concrete finish.
Most surfaces may need only a strike-off and screed to achieve adequate contour and level, whereas others may need a broomed, floated, or troweled finish. Based on the quality of the required finish, you can add $1.50 to $2 per square foot to your concrete cost estimate.
Also, they add the cost of any curing substance or testing services that may be necessary.
Using the data above, you can obtain a fair idea of how concrete contractors determine their costs for your job. Keep in mind that this pricing estimate is for “plain” concrete. Decorative choices, including wood stamping, staining, and custom finishes, will dramatically raise the project’s cost.
Based on the scale and difficulty of the project, you may count on paying between $4.25 and $6.25 per square foot for plain concrete. For any more questions on how concrete contractors come up with their pricing click here!