🔨 Contractor Tools
Construction Estimate Calculator
Build a complete job estimate with labor, materials, overhead, and profit margin.
Job details
Fill in the details and click calculate.
Frequently Asked Questions
How do rough construction estimates work?
Early-stage estimates use cost per square foot by project type and finish level — e.g., $150–300/sq ft for custom residential in most US markets. They set expectations before detailed takeoffs refine the number.
How much contingency should a construction estimate carry?
Add 5–10% for new construction and 15–25% for remodels, where demolition reveals surprises. Present contingency as its own line so clients see it as protection, not padding.
Why do construction estimates vary so much between contractors?
Different overhead structures, finish assumptions, and how completely each bid covers scope. The lowest bid frequently excludes items that return later as change orders.
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