OpusCalc Pro: Contractor Calc

About OpusCalc Pro: Contractor Calc

OpusCalc Pro is the construction calculator built for contractors, framers, and serious DIYers who need accurate math on the job site — not at the desk.
Whether you’re calculating stair stringers for a deck or estimating drywall for a full remodel, OpusCalc Pro gives you IRC-compliant results in seconds.
CONSTRUCTION CALCULATORS
🪜 Stair Stringer Calculator — IRC 2021-compliant layouts with exact riser heights, tread counts, and total run. The most accurate stair calculator available on Android.
🏠 Roof Rafter Calculator — Common, hip, and valley rafters with precise degree and fractional outputs for any pitch.
🪵 Stud Count Calculator — Field studs, corners, openings, and plate material with adjustable 5%, 10%, or 15% waste margins. Built for 16” and 24” O.C. framing.
🧱 Drywall & Paint Estimator — Calculate sheets, gallons, joint compound, and screws based on your exact room dimensions.
🏗️ Flooring & Tile Calculator — Convert any area into exact box counts with adjustable waste factors so you never run short or over-order.
🏛️ Concrete Volume Calculator — Estimate cubic yardage for slabs, columns, and footings, including pre-mix bag counts.
PROJECT MANAGEMENT
Save every calculation to named projects stored in the cloud. Export branded PDFs to share with clients or your crew via email or AirDrop. Rename, search, and manage all your projects from one screen.
BUILT FOR THE FIELD
High-contrast dark mode designed for readability in any lighting. Custom dimensional keyboard for fast fractional input — no fumbling with decimals on a job site.
OpusCalc Pro is the construction calculator trusted by contractors, framers, and builders who can’t afford to get the math wrong.
Download the best framing and material calculator for Android today.