Formula and Assumptions

Total = materials + labor + permits + contingency reserve.

Actual conditions, local rates, product labels, and contractor recommendations can change the final quantity or cost.

Example Calculation

$850 materials, $1,200 labor, $75 fees, and 10% contingency totals about $2,338.

Tips

  • Separate must-have and optional items.
  • Use written quotes for final budgets.
  • Keep a contingency reserve.

FAQ

What is contingency?

It is a reserve for surprises and small changes.

Can I enter zero labor?

Yes, use zero for DIY labor.

Does it include taxes?

Add taxes in permits or fees if needed.

Can I save the result?

Yes, use the save button.