Progress Invoice Retainage Calculator
Plan progress invoice retainage from project dimensions, material rate, and waste. Use this free progress invoice retainage calculator for fast, clear result...
Progress Invoice Retainage Calculator guide
What it is for
Plan material quantities for progress invoice retainage calculator before purchasing supplies.
How it is calculated
Retained amount = invoice × retainage percentage / 100. Amount currently due = invoice − retained amount, before any other contract adjustments.
Assumptions
The surface is reasonably regular and the dimensions, coverage, and waste represent the real project.
Example
Worked example using the fields in order: 50000, 10. The calculated primary amount is 45,000 currency; the secondary value is 5,000. Check the units before purchasing.
Limitations
Cuts, openings, packaging, site conditions, and local codes can change the final quantity; confirm with a supplier or professional.