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Free Construction Estimate Template & Generator

Give clients a realistic project cost range before blueprints are final. Construction estimates that build trust from the very first conversation.

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Construction Pro Services

Austin, TX 78701

ESTIMATE

#EST-2026-001

DescriptionQtyRateAmount
Garage addition (400 sq ft)1$28,000.00$28,000.00
Foundation and concrete work1$8,500.00$8,500.00
Roofing — architectural shingles1$4,200.00$4,200.00
Electrical and plumbing rough-in1$3,500.00$3,500.00
Estimated Total$44,200.00

Construction Estimates: The Foundation of Every Successful Project

Before a construction project has detailed plans, engineered drawings, or sub bids, the client needs to know if their vision fits their budget. That's what a construction estimate does. Unlike a quote, which commits to a price, a construction estimate template provides a cost range based on project scope, comparable projects, and current market conditions. It's the document that determines whether a project moves from dream to reality or goes back to the drawing board.

Components of a Construction Estimate

  • Project description - scope, size, quality level, and key features
  • Cost-per-square-foot range - based on construction type and finish level (e.g., "Custom residential: $200-$350/sqft")
  • Division-level cost ranges - site work, foundation, framing, roofing, MEP, finishes, each with low-to-high estimates
  • Soft costs - architectural fees, engineering, permits, surveys, soil testing, inspections
  • Contingency - percentage based on project stage and risk (10-25%)
  • Escalation allowance - for projects with long timelines, account for material inflation
  • Site-specific factors - soil conditions, slope, access challenges, utility connections
  • Timeline estimate - rough project duration based on scope and crew availability
  • Assumptions and exclusions - what is and isn't included in the numbers

Building Accurate Construction Estimates

Start with cost-per-square-foot benchmarks from your recent projects and adjust for the specific scope. A basic spec home might run $150-$200/sqft in your market, while a custom home with high-end finishes could be $300-$450/sqft. Commercial construction varies even more widely based on building type: office space at $150-$250/sqft, restaurant build-out at $200-$400/sqft, medical at $250-$500/sqft. Your local experience is the most reliable benchmark.

Break estimates into hard costs and soft costs. Hard costs are the physical construction: materials, labor, equipment, and subcontractors. Soft costs include architectural and engineering fees (typically 8-15% of construction cost), permits (1-3%), surveys, soil reports, and construction management. Clients often forget soft costs, so presenting them separately prevents sticker shock later.

Contingency percentages should reflect the project's maturity. During the conceptual phase with no plans, 20-25% contingency is appropriate. Once schematic design is complete, 15-20%. After construction documents are finalized, 10-15%. Communicate this progression so clients understand that contingency shrinks as plans become more detailed, and that it's a safety net, not padding.

Create Construction Estimates with Confidence

BillThemToday's free estimate generator helps you build structured construction estimates with division-level breakdowns, contingency calculations, and clear assumptions. Present a professional PDF that moves projects from concept to contract. Our construction estimate generator gives clients the cost clarity they need to move forward.

Frequently Asked Questions About Construction Estimates

What contingency percentage should I include on construction estimates?

It depends on the project stage. For conceptual estimates with no drawings, 20-25% contingency accounts for the high level of unknowns. Once design development is complete, 15-20% is appropriate. With finalized construction documents and sub bids in hand, 10-15% is standard. Always explain that contingency decreases as plans become more detailed and is only used for genuine unforeseen conditions.

How do I estimate construction costs per square foot?

Base your per-square-foot estimate on recent comparable projects in your market, adjusted for the specific scope and finish level. Track your actual costs per sqft on completed projects to build a reliable database. National averages are useful starting points, but local labor rates, material availability, and code requirements can cause 30-50% variation between markets. Your own project history is the most accurate benchmark.

Should I include soft costs in my construction estimate?

Yes. Many clients only think about hard construction costs and are surprised by architectural fees, engineering, permits, surveys, and inspections that can add 15-25% to the project budget. Showing soft costs separately in your estimate demonstrates thoroughness and prevents the client from having unrealistic expectations about total project cost. It also positions you as an experienced builder who understands the full picture.

How do I estimate renovation costs when I don't know what's behind the walls?

Renovation estimates should carry higher contingency (20-30%) than new construction because existing conditions are unpredictable. Note specific risks: "Estimate assumes sound framing behind existing drywall. Discovery of rot, termite damage, or non-code wiring will require additional scope and cost." Recommend exploratory demolition before finalizing numbers on older buildings, and budget for it in the estimate.

How far off should a construction estimate be from the final project cost?

A conceptual estimate should be within 25-30% of the final cost. A design-development estimate should be within 15-20%. A construction-document estimate should be within 10%. If your estimates consistently miss by more than these ranges, recalibrate your cost data. Clients understand that estimates are approximations, but wildly inaccurate estimates damage trust and cost you future projects.

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