Estimate slab placement productivity from completed area, crew size, and working time. The calculator reports square feet per crew-hour, square feet per labor-hour, and labor-hours per 1,000 square feet. Use the same definition of working time for every comparison, and record unusual pumping, finishing, access, or weather conditions alongside the result.
Crew-hour productivity supports duration planning; labor-hour productivity normalizes the result for crew size.
Do not compare results without noting slab complexity, placement method, finish, access, and included work scope.
A crew of 8 placing 5,000 ft² in 10 hours achieves 500 ft² per crew-hour, 62.5 ft² per labor-hour, and 16 labor-hours per 1,000 ft².
Usually not. Field variation and handling loss can justify a separate allowance, which this calculator displays explicitly.
Convert every dimension to the unit shown by the field before calculating.
No. The result covers concrete volume unless an input or output explicitly says otherwise.
They often have different dimensions, placement conditions, and waste assumptions.
No. Confirm dimensions, specifications, and order increments with the project documents and supplier.
| Item | How it is used |
|---|---|
| Area per crew-hour | Calculator input in the displayed unit |
| Area per labor-hour | Calculator input in the displayed unit |
| Labor-hours per 1,000 ft² | Calculator input in the displayed unit |