Construction & Contracting

Win More Bids.
Know Your Numbers.

Build detailed, professional bid packages in minutes. Track labor by trade, materials, equipment, and subcontractors — with automatic markup, profit margin, and a client-ready summary.

Field Notes
🏗️ Construction
How to Bid a Construction Job Step by Step
March 2026·8 min read
Construction
How to Bid a Construction Job Step by Step
Construction bids fail when contractors underestimate labor hours or forget overhead allocation. The formula: materials + labor + overhead + 20-30% margin.
Read the Guide →
Construction Bid & Estimate Calculator
Demo Mode

BuildPro

Construction Bid Estimator

Project
Riverside Commercial Addition
Total Bid
$290,684
Direct Cost
$235,945
Per sf
$69.21
Demo
Overhead
%
= $28,313
Profit Margin
%
= $26,426
Bid Notes
▸ Labor
$168,000
Trade / RoleWorkersHours ea.$/hrLabor TotalTotal
1 × 160h$15,200
4 × 320h$87,040
3 × 240h$44,640
2 × 120h$21,120
▸ Materials
$19,595
ItemQtyUnitUnit CostTotal
$6,975
$3,880
$5,040
$3,700
▸ Equipment
$5,650
Equipment TypeDaysDay RateTotal
$4,250
$1,400
▸ Subcontractors
$42,700
Scope of WorkCompanyContract Amount
Cost Breakdown
Labor$168,00071%
Materials$19,5958%
Equipment$5,6502%
Subcontractors$42,70018%
Direct Cost$235,945
Overhead (12%)$28,313
Subtotal$264,258
Profit (10%)$26,426
Total Bid Amount
$290,684
$69.21/sf
Labor71%
Materials8%
Equipment2%
Subs18%
🏗️
Multi-Trade Labor Tracking
Add any number of trades — carpenters, electricians, plumbers, site supers — with individual rates and hours. Overtime calculated automatically.
📦
Materials & Equipment
Line-item materials with units, quantities, and unit costs. Equipment by day or week. Every number feeds the total in real time.
📊
Instant Profit Margin
Set your overhead and markup percentage once. See your gross profit, margin %, and final bid price update live as you build.
🤝
Subcontractor Sections
Track subs separately with their own line items. Ideal for GCs managing multiple trade contractors under one bid.
📄
Client-Ready Summary
Collapse into a clean summary view your client can actually read — no raw spreadsheet clutter, just the numbers that matter.
💾
Multiple Bids, One Place
Manage several active bids simultaneously. Switch between projects without losing your work.
★★★★★
I was doing all of this in Excel and losing track constantly. This replaced two spreadsheets I've been patching for years. Submitted my first bid with it on a Tuesday and had a signed contract by Friday.
👷
Marcus T.
General Contractor · Tulsa, OK
★★★★★
The labor section alone is worth it. Being able to set different rates per trade and have overtime auto-calculate saved me from a bid I almost blew on a hospital job.
🔧
Dana R.
Electrical Subcontractor
★★★★★
Clean, fast, and the margin calculation is right there without me having to formula-chain across six tabs. I send the summary view straight to clients now.
🏢
Javier M.
Commercial Estimator
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24-hour full access
$17.99
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Common Questions

Frequently Asked Questions

What cost categories does the bid calculator cover?+

The calculator handles labor by trade (framing, electrical, plumbing, etc.), materials with unit pricing, equipment costs, and subcontractor line items. Each category has its own markup setting so your margins are accurate across all cost types.

How does the markup and profit margin work?+

You set a markup percentage per category and an overall target profit margin. The calculator shows you the bid price required to hit your margin, your gross profit in dollars, and flags if a category is pulling your margin below target.

Can I generate a client-ready proposal from this tool?+

Yes. The summary view formats your bid into a professional breakdown showing total labor, materials, equipment, subs, markup, and final bid price — structured for client presentation or inclusion in a formal proposal document.

How is this different from spreadsheet-based estimating?+

The tool recalculates live as you add line items, so you see margin impact in real time instead of after you've finished building the estimate. It also handles the markup math automatically, which eliminates the most common pricing errors in manual spreadsheet bids.