Estimate The Cost Of A Concrete Pad From Dimensions, Thickness And Your Own Current Rates. Calculate Cubic Metres, Add A Waste Allowance, Enter Ready-Mix Cost, Delivery, Labour, Reinforcement, Formwork And Other Project Costs, Then See A Clear Total And Cost Per Square Metre.
Select A Rectangular Pad, Round Pad, Multiple Identical Pads Or Enter A Known Volume. Empty Number Fields Show A Light 0 Placeholder Only—The 0 Never Becomes Part Of The Number You Type.
Your Result Will Appear Here After You Press Calculate Concrete Pad Cost.
The PDF Includes Pad Type, Measurements, Area, Base And Order Volume, Concrete Rate, Delivery, Labour, Reinforcement, Formwork, Base, Pump, Finishing, Other Costs, Tax And Total.
Start With Pad Geometry, Convert It To Cubic Metres, Add Any Allowance, Then Add The Real Project Cost Components You Want Included.
Keep Concrete Quantity And Project Cost Components Separate So You Can See What Is Driving The Final Total.
Calculate Concrete Cubic Metres From Rectangular, Round Or Multiple Pads.
Enter Your Own Ready-Mix A$/m³ Rate And Delivery Charges.
Add Your Own Total Labour Estimate Instead Of Using A Fixed Wage Assumption.
Add Mesh Or Bar Cost From The Actual Project Estimate.
Include Edge Forms, Excavation Or Base Preparation As Separate Inputs.
Compare The Final Project Total With The Calculated Pad Area.
A Concrete Pad Cost Calculator starts with geometry and then adds the cost components that apply to the actual job. For a rectangular pad, calculate volume from length × width × thickness. For a round pad, calculate circular area first and multiply by thickness.
The calculator above deliberately uses editable cost fields instead of fixed market prices. Ready-mix rates, delivery, labour, reinforcement, formwork and base preparation can all change by supplier, location, site access and project scope.
Volume (m³) = Length (m) × Width (m) × Thickness (m)
If a pad is 4 metres long, 3 metres wide and 100 mm thick, convert 100 mm to 0.10 m. The base concrete volume is 4 × 3 × 0.10 = 1.20 m³.
Volume = π × Radius² × Thickness
Divide the diameter by two to get radius. The calculator handles the circular area automatically and also reports the pad area used for cost-per-square-metre calculations.
If several pads are identical, calculate one pad and multiply by the number of pads. If their dimensions differ, estimate each pad separately and add the totals rather than averaging the dimensions.
Theoretical geometry assumes the formed pad or excavation exactly matches the measurements. Real projects can have low spots, uneven base levels, form variation and placement losses. Choose an allowance that fits the site rather than relying on a fixed default.
Enter the A$/m³ rate from the actual ready-mix quote. The calculator multiplies the order volume by that rate. Delivery or short-load charges are kept in a separate field so you can match the structure of the quote.
If you need a more detailed supplier breakdown, use the Ready Mix Concrete Cost Calculator.
Labour can include form setup, concrete placement, screeding, finishing, edging, joint work, curing tasks and cleanup depending on the scope. Enter your own total labour estimate or use the Concrete Labor Cost Calculator to calculate labour separately.
Concrete pads may use mesh, reinforcing bars, dowels, chairs or other reinforcement depending on the design. The calculator does not choose reinforcement; it simply lets you add the material cost from your project takeoff.
Formwork cost can include timber, stakes, pins, reusable forms, labour or hire. Rectangular pads can be straightforward, while curved pads, steps and thickened edges can require more work.
A pad may require excavation, spoil removal, compacted base material, levelling and proofing before concrete placement. Use the base/excavation field for the portion of those costs you want included in the estimate.
If the truck cannot discharge directly into the pad, a concrete pump or other placement method may be required. Add the quoted pump or placement cost separately.
Finishing can include broom finish, trowel finish, edging, surface treatments or curing products. Enter a separate amount if those costs are not already included in labour.
The cost-per-m² result divides the full estimated project total by pad area. This can be useful when comparing different pad sizes or quotes, but it only makes sense when the included scope is similar.
Cost Per m² = Final Estimated Project Cost ÷ Pad Area
| Cost Category | Entered As | Examples |
|---|---|---|
| Concrete Supply | A$/m³ | Ready Mix Material Rate |
| Delivery | Fixed A$ | Delivery, Short-Load Or Minimum-Load Fees |
| Labour | Fixed A$ | Placing, Screeding, Finishing, Cleanup |
| Reinforcement | Fixed A$ | Mesh, Bars, Chairs, Dowels |
| Formwork | Fixed A$ | Forms, Stakes, Hire Or Form Labour |
| Base / Excavation | Fixed A$ | Excavation, Base Material, Compaction |
| Pump / Placement | Fixed A$ | Concrete Pump Or Special Placement |
| Finishing / Curing | Fixed A$ | Surface Finish, Curing Products |
Small equipment pads can use relatively little concrete, but delivery minimums, formwork and labour can make the total cost per square metre higher than a larger simple slab. This is why the calculator keeps material cost and fixed project costs separate.
A shed pad may include excavation, compacted base, reinforcement and formwork in addition to concrete. The required thickness and reinforcement should come from the project requirements rather than from the cost calculator.
Small service-equipment pads can be estimated with the same rectangular pad formula. Equipment loads, vibration, anchorage and required pad dimensions must still come from the relevant installation or engineering requirements.
The terms pad and slab can overlap. A pad is often a smaller isolated concrete area for equipment, sheds or other specific uses. The same volume formula applies to a rectangular slab, but project scope and structural requirements may differ.
All numeric fields start empty and display a light 0 placeholder only. Typing 4 gives 4 rather than 04, and the entered number stays clear without blur.
This calculator estimates quantity and cost only. It does not select pad thickness, reinforcement, concrete strength, footing design, joints, drainage, load capacity, curing requirements or structural details.
For general Australian concrete industry information, visit Cement Concrete & Aggregates Australia. For silica and work-safety information, consult Safe Work Australia.
Concrete Supply, Site Preparation, Labour And Structural / Finishing Costs Can Be Entered Separately.
Volume Multiplied By The Ready-Mix Rate.
Excavation And Base Preparation Costs.
Placement And Finishing Labour Entered By You.
Reinforcement, Forms, Pump, Finishing And Other Costs.
These Examples Demonstrate Volume Calculations Only. They Are Not Market Price Quotes Or Structural Recommendations.
| Pad Example | Dimensions | Area | Base Volume | With 10% Allowance |
|---|---|---|---|---|
| Small Pad | 2 m × 2 m × 100 mm | 4.0 m² | 0.40 m³ | 0.44 m³ |
| Medium Pad | 3 m × 3 m × 100 mm | 9.0 m² | 0.90 m³ | 0.99 m³ |
| Large Pad | 4 m × 5 m × 125 mm | 20.0 m² | 2.50 m³ | 2.75 m³ |
| Round Pad | 3 m Diameter × 100 mm | 7.07 m² | 0.71 m³ | 0.78 m³ |
Quick Answers About Pad Volume, Ready Mix, Labour, Reinforcement, Formwork And Cost Per Square Metre.
Calculate The Pad Volume, Add Any Project-Specific Allowance, Multiply By Your Concrete Rate, Then Add Delivery, Labour, Reinforcement, Formwork And Other Costs.
For A Rectangular Pad, Multiply Length By Width By Thickness In Metres.
Yes. The Round Pad Option Uses π × Radius² × Thickness.
Yes. Delivery Or Short-Load Fees Can Be Entered As A Separate Total.
Yes. Enter Your Own Labour Total Or Use The Related Concrete Labor Cost Calculator For A Separate Labour Estimate.
Yes. Both Are Separate Editable Cost Inputs.
Yes. The Final Project Estimate Is Divided By Pad Area To Show An Effective Cost Per m².
Only Add A Percentage If Your Entered Costs Are Tax-Exclusive And You Want Tax Included. Leave It At 0 If Your Costs Already Include Tax.
The 0 Is A Placeholder Only. It Is Not Part Of The Actual Number You Enter.
No. Typing 4 Gives 4, Not 04.
No. Thickness And Structural Requirements Must Come From The Appropriate Project Design Or Specification.
The PDF Includes Pad Dimensions, Area, Volume, Concrete Supply, Delivery, Labour, Reinforcement, Formwork, Other Costs, Tax And The Estimated Total.
Use Current Supplier Quotations, Project Documents And Australian Industry Or Safety Guidance Alongside Any Online Cost Estimate.
Australian Industry Information And Technical Concrete Resources.
Visit CCAANational Information About Silica Hazards And Safe Work Requirements.
Read Silica GuidanceConfirm Mix Specification, Delivered Rate, Minimum Load, Delivery And Service Fees.
Use The Required Pad Thickness, Reinforcement, Base And Concrete Specification.