Free Contractor & Estimating Tools
Stair Calculator Online Tool
Free stair calculator. Calculate number of risers, exact step height, total horizontal run, and stringer board length for building code compliance.
Direct Calculator Preview
Stair Calculator & Material Estimator
Switch between any trade calculator below or bookmark this direct link for your project estimating.
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🪜 Stair & Riser Geometry Calculator
Calculate exact number of risers, exact step height, total run, and stringer board length.
Number of Risers14 Risers
Exact Riser Height7.71"
Total Horizontal Run10.83 ft (130")
Stringer Length14.1 ft
Need wood framing, joists, and structural timber takeoffs?Framing Takeoff Services →
International Standards
US vs UK Construction Terminology Guide
We work seamlessly with both US CSI MasterFormat and UK/RICS NRM measurement standards.
| US Construction Term | UK / Commonwealth Term | Typical Measurement Unit | Relevant BOQ Service |
|---|---|---|---|
| Drywall / Sheetrock | Plasterboard | Sq Ft / m² | Drywall Takeoff |
| Asphalt Paving | Tarmac / Bitumen Macadam | US Tons / Metric Tonnes | Paving Takeoff |
| Cubic Yards (yd³) | Cubic Metres (m³) | Volume | Concrete Takeoff |
| Lumber / Framing | Timber | Board Feet / m³ | Framing Takeoff |
| Quantity Takeoff (QTO) | Bill of Quantities (BOQ) / QS Take-off | Itemized Bills | BOQ Preparation |
| Cost Estimator | Quantity Surveyor (QS) | Cost Planning | Cost Estimating |
Bid Delivery Estimator
Estimate Your Project Turnaround & Cost
⚡ Instant Estimating Estimator
Estimate Your Turnaround & Project Scope
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⏱️ Estimated Turnaround:24–36 Hours
🎯 Accuracy Guarantee:Up to 98%
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Q&A
Construction Calculators Q&A
Frequently asked questions about our construction estimation and calculation tools.