Bill of Quantities Builder
Create and organize construction bills of quantities (BoQ) with itemized trade sections, unit rates, material quantities, labor costs, and CSV export.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Add Line Item
| Item # | Trade Section | Description | Qty | Unit | Unit Rate | Total Amount | Action |
|---|
Subtotal: $0.00
Contingency (10%): $0.00
Grand Total Estimate: $0.00
How it works
- Set your project title, currency symbol, and contingency percentage.
- Enter line items with trade section names, work descriptions, quantities, units (e.g., m², m³, No, Lm), and unit rates.
- Click + Add Item to BoQ to insert items into your ledger.
- Review automatic subtotal and contingency calculations, and export your BoQ spreadsheet as a CSV.
FAQ
What is a Bill of Quantities (BoQ)?
A Bill of Quantities (BoQ) is an itemized construction document prepared by quantity surveyors and contractors that lists measured quantities of labor, parts, and materials required for a building or civil engineering project.
Why is a contingency allowance included in a BoQ?
A contingency sum (typically 5% to 15%) is added to budget for unforeseen site conditions, material price escalations, minor design adjustments, or adverse weather delays.
How are BoQ trades typically categorized?
Standard BoQ trade groupings follow standard methods of measurement (e.g. NRM2 or CESMM): Substructure & Groundworks, Superstructure / Framing, Cladding & Masonry, Roofing, Finishes, Mechanical & Electrical (MEP), and External Works.
Can I export the BoQ to Microsoft Excel or Google Sheets?
Yes! Click "Download BoQ CSV" to generate a spreadsheet containing all itemized lines, unit rates, subtotal sums, and grand totals ready for tender submission.
How we compare
| Feature | Online Tool Store | Commercial QS software | Manual spreadsheets |
|---|---|---|---|
| Zero installation & instant in-browser builder | ✓ | ✗ (Heavy install) | ✓ |
| Multi-currency & contingency auto-calculation | ✓ | ✓ | Manual formula |
| 100% Free with no licensing or account setup | ✓ | ✗ ($50–$200/mo) | ✓ |