Roofing Estimate Calculator (Excel + Google Sheets)

Turn roof measurements into squares, material quantities and a three-option proposal your customer can sign.

WHAT IT DOES

• Roof planes: flat footprint x pitch factor (1/12 to 12/12), or type a measured sloped area from a report.
• Waste % by roof complexity; squares with and without waste.
• Auto quantities: shingle bundles, underlayment, ice & water shield, drip edge, starter, ridge/hip cap, nails, pipe boots.
• Labor per square, tear-off per layer, steep-pitch charge, dumpster, permit and overhead.
• Good / Better / Best prices side by side, with price per square and profit.
• Printable US-Letter proposal with all three options and a spot for the customer to choose.
• Job log: contract price vs. actual costs, margin and $ per square.

WHAT'S INCLUDED

• 1 .xlsx workbook with 8 tabs: Start Here, Settings, Measure, Materials, Quote Tiers, Printable Quote, Job Log, Sample Data
• A short buyer guide (PDF) with setup steps and how to open it in Google Sheets

HOW IT WORKS

1. Enter your supplier prices, labor rates and margin in Settings. Check coverage per bundle/roll against what you buy.

2. Enter planes and linear measurements on Measure.

3. Review Quote Tiers and print the proposal.

GOOD TO KNOW

• Digital download. Nothing is shipped.
• Works in Microsoft Excel and Google Sheets (free Google account). Uses standard formulas only; no macros, no add-ons.
• Every rate in the file is an example default. Change it to fit your market. They are not industry standards.
• All names and jobs in the sample data are fictional.
• This is a pricing tool, not tax, legal or accounting advice.
• Made by Expanse Ventures with help from AI tools. Every formula was recalculated and checked against a separate model before listing.
• Because it's a digital file, we can't take returns. If a file doesn't work, message us and we'll fix it.