Use the split to understand a quote—not to reverse-engineer a contractor's margin
A project total usually includes more than labor and materials. Equipment, permits, disposal, supervision, insurance, overhead and profit may be buried in the same number. This calculator is most useful when you want to test your own assumptions or compare two estimates on the same basis.
A quick example
Suppose a project total is $18,000 and you want to test a 40% labor / 45% material split. That produces $7,200 in labor, $8,100 in materials and $2,700 in everything else. The point is not that those percentages are “correct”; the point is that you can see what your assumption implies before using it in a budget.
What can sit inside “other”
- Permits and inspections
- Dumpster or haul-away fees
- Equipment rental
- Delivery and mobilization
- Supervision and project management
- Insurance and business overhead
- Contractor profit
Why the split changes from job to job
A paint job can be labor-heavy. A premium appliance replacement can be material-heavy. Roofing, HVAC and concrete each have their own mix of material, equipment, crew time and logistics. That is why a single “industry standard” percentage is usually a poor shortcut.
Better way to compare two bids
Instead of asking whether labor “should” be a certain percentage, line up the scope: exact materials, quantities, demolition, prep, permits, cleanup, warranty and exclusions. If the work described is different, the percentages are not comparable.
For a fuller side-by-side review, use the Contractor Quote Comparison.