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Free tools for the trades
Fast, honest calculators and generators for contractors and service crews — the take-off, pricing, and billing math you keep re-doing on the back of an envelope. No account, no paywall, and your numbers stay in your browser. Built by FieldMark.
Estimating
Take-off and pricing math you'd otherwise do on a legal pad.
Board Foot Calculator
Price a lumber cut list by the board foot.
Open tool →Stone Wall Cost Calculator
Turn one finished job into a reusable $/ft² stone rate.
Open tool →Concrete Calculator
SoonCubic yards and bags for slabs, footings, and columns.
Back office
The paperwork side — billing, terms, and getting paid.
Built by FieldMark
When the envelope math turns into a job
FieldMark is project management, time tracking, and invoicing built for construction and service crews — on the truck, in the trench, and back at the office, online or off.
Start free in FieldMark →