Useful numbers.
Clearer assumptions.
Work through roof quantities and organize a commercial bid. These tools run in your browser; download the results without submitting your contact information.
Make the math visible.
Enter measured sloping surface area, or a roof plane’s horizontal projected area and slope. Add separate areas when the slope or measurement basis changes.
22roofing squares
including allowance
- Measured / calculated surface
- 2,000 sq ft
- Added allowance
- 200 sq ft
- Area including allowance
- 2,200 sq ft
- Whole shingle bundles
- 66
Planning arithmetic, not a complete material order or a price. Starter, hip and ridge, underlayment, fasteners, flashings, attachment and detail quantities are separate. Verify the actual product, layout and field conditions.
Understand the measurement methodA stronger scope review.
Use this project check as a starting point, then add the requirements in the actual bid documents.
0 of 10 review items checked
Turn a quoted rate into a working budget.
Use measured roof area with the unit price in your quote. Keep installed work, separately contracted labor and extra scope distinct; download the result with the assumptions and missing amounts visible.
Open the Colorado roof-cost worksheetOpen the worksheet.
Build a clearer plan.
Original Peak templates for estimates, commercial bid review and roof records. Download the CSV files directly; open them in your spreadsheet app or print them.
Estimate comparison
Compare three proposals line by line and record unresolved questions.
Download worksheet02 / CSV worksheetCommercial bid scope
Organize areas, edges, counted details, addenda and allowances.
Download worksheet03 / CSV templateRoof observation log
Keep dates, locations, observations and photo references together.
Download worksheetKnow what the calculation includes.
Surface area is converted to roofing squares at 100 square feet per square. A geometric slope factor is applied only when you select horizontal projected area. Your ordering allowance is shown separately, and whole bundles are rounded up using the product coverage you enter.
Roofing products, packaging, assembly details and project requirements differ. A quantity worksheet does not select a roof system, establish roof condition, determine permit requirements or replace a complete takeoff.
Read the full measurement methodNow let’s look at
your Colorado roof.
Bring your questions, measurement report, photos or plans. Our team can help turn the next step into a property-specific roofing proposal.