General Contractor Tools
24 free tools built for your trade. Real terminology, real benchmarks, real formulas.
Technical Calculators
Concrete, lumber, framing, and materials estimating
Concrete Calculator
Calculate cubic yards of concrete for slabs, footings, walls, and columns.
Board Feet Calculator
Calculate board feet for any lumber dimension with cost and weight estimates.
Stud Calculator
Calculate studs, plates, and blocking for IRC-compliant wall framing.
Drywall Calculator
Calculate drywall sheets, tape, and mud for walls and ceilings.
Staircase Calculator
Design IRC-compliant stairs with rise, run, treads, and stringer length.
Excavation Calculator
Calculate cubic yards for excavation with equipment and disposal costs.
Cost per Sq Ft
Track cost per square foot with phase breakdown and industry benchmarks.
Roofing Calculator
Estimate shingles, underlayment, flashing, and plywood by roof slope and area.
Business & Pricing
Margins, rates, budgets, and job costing
Profit Margin
See your real margin on any project. Pre-loaded with GC benchmarks.
Labor Rate
Find out what you actually need to charge per hour to be profitable.
Markup to Margin
Convert markup to margin (and back) with a handy truth table.
Sub Markup
Calculate the right markup on sub invoices for overhead and profit.
Project Budget
Build a project budget and track actual costs vs. estimates.
Overhead Calculator
Know your true break-even by adding up all GC business costs.
Business Valuation
Estimate what your contracting business is worth.
Break-Even
Find out how many projects you need to cover all your costs.
Templates & Documents
Invoices, estimates, change orders, and agreements
Invoice Generator
Professional contractor invoices with line items and payment terms. PDF ready.
Estimate Template
Build professional estimates with labor, materials, and deposit terms. PDF ready.
Change Order
Document scope changes with cost and schedule impact. PDF ready.
Work Order
Internal work orders with scope, materials, and crew assignments.
Sub Agreement
Sub agreement with scope, payment, insurance, and lien waiver terms.
Punch List
Track punch list items with status, assignments, and completion dates.
Sales Tools
Customer-facing ROI and valuation calculators
All 24 tools are 100% free.
Pick a tool above and get to work.