Plan concrete, excavation, and crew hours with confidence. Compare methods, rates, allowances, and crew assumptions. Export clear summaries for supervisors, estimators, and daily records.
| Scenario | Footings | Footing (L×W×T) | Waste | Concrete Volume | Total Labor Hours |
|---|---|---|---|---|---|
| Residential columns | 6 | 1.8×1.8×0.45 m | 5% | ≈ 9.19 m³ | ≈ 45–65 h |
| Light industrial pads | 10 | 2.0×2.0×0.50 m | 7% | ≈ 21.40 m³ | ≈ 120–170 h |
| Strip footing run | 1 | 18×0.6×0.45 m | 5% | ≈ 5.10 m³ | ≈ 45–65 h |
This calculator supports isolated and strip footing takeoff using either metric or imperial units. Enter footing length, width, thickness, and the number of footings or segments. Add a waste allowance to reflect spillage, overbreak, and normal field variability. Excavation depth and working space per side help align quantities with practical trench or pit dimensions.
Concrete volume is computed from L×W×T, multiplied by quantity and waste. Excavation volume expands the plan dimensions by twice the working space and multiplies by excavation depth. Formwork area is estimated from side contact area, with an optional bottom scope for cases that include a base form or blinding control.
Reinforcement can be estimated using a kg per cubic meter factor or entered as a known total. The density method is useful for early estimates; direct input is better when bar schedules or site logs exist. Placement effort is tied to concrete volume so pump access, wheelbarrow distance, and consolidation method can be reflected through the productivity rate.
Each activity converts quantities into labor-hours using user-defined rates: excavation per volume, formwork per area, rebar per kilogram, concrete placement per volume, and finishing per area. The breakdown highlights where time is spent, making it easier to validate assumptions against crew performance and site constraints.
Total labor-hours are divided by crew size and hours per day to estimate duration. Labor cost is calculated from total hours and hourly wage, then adjusted using overhead/profit percentage. Use the export buttons to document bid worksheets, daily planning notes, and quantity checks for stakeholder review.
| Inputs | Values | Outputs | Values |
|---|---|---|---|
| Footings | 6 | Concrete volume | 9.19 m³ |
| Size (L×W×T) | 1.8×1.8×0.45 m | Excavation volume | 25.00 m³ |
| Depth / working space | 0.90 m / 0.15 m | Formwork area (sides) | 19.44 m² |
| Waste / rebar density | 5% / 85 kg per m³ | Total labor-hours (default rates) | 48.28 h |
Use isolated for individual pads under columns. Use strip for continuous footings under walls, where length represents the run. Both use the same volume logic, but strip mode often involves different excavation and production assumptions.
Excavation includes working space on both sides and full excavation depth, which can exceed the concrete thickness. This reflects practical access for workers, formwork, rebar placement, and compaction around the footing.
Small pours may use 3–5%. Complex access, overbreak, or multiple handling may justify 5–10%. Align waste with your batching method, truck washout expectations, and typical site losses.
Enter rebar directly when you have a bar bending schedule, takeoff sheets, or recorded steel deliveries for the footing scope. This improves labor prediction because rebar hours scale strongly with kilograms installed.
Start from historical crew outputs on similar soil, access, and equipment conditions. Adjust excavation for soil and disposal distance, formwork for complexity, and placement for pump use or manual handling.
Yes. Finishing uses the plan area as a practical proxy for top surface finishing or leveling. If your scope includes edges or additional treatment, increase the finishing rate to capture extra effort.
Crew-days represent total labor-hours divided by crew size and hours per day. Use it for planning windows and sequencing. Weather delays, inspections, and curing constraints are not included and should be added separately.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.