Construction Expert A1 PRO

About this app

The ultimate construction calculator trusted by contractors, builders, carpenters, and engineers. Construction Expert A1 Pro replaces your $100+ hardware calculator with a smarter, more powerful app. PROFESSIONAL CALCULATOR - Full feet-inch-fraction math — enter dimensions the way you think - Supports feet, inches, yards, meters, centimeters, millimeters - Fractional entry (1/16 to 1/64 resolution) with auto-simplification - Percentage, square, cube, square root, reciprocal - D:M:S (degrees-minutes-seconds) and trigonometry (sin, cos, tan) - Expression mode with 12 construction formula templates - Running tape with save, share, and print - 3 memory registers + cumulative memory with count/average RIGHT ANGLE & ROOF FRAMING - Pitch, rise, run, diagonal — solve any right triangle instantly - Common rafter length, plumb cut, and level cut angles - Hip/valley rafter with cheek cut angles - Jack rafter lengths with on-center increment - Irregular roof support (dual-pitch hip/valley) - Rake wall stud lengths (ascending or descending) - Roof area, squares, bundles, and 4x8 sheet count - Interactive rafter diagrams STAIR LAYOUT - Total rise to finished risers and treads - Riser adjustment (+/-) for code compliance - Stringer length and inclination angle - Open/closed stringer support - Interactive stair diagram with all dimensions 7 TRADE CALCULATORS - Electrical: Wire sizing (NEC), voltage drop, conduit fill, box fill, service sizing - Plumbing: Pipe sizing, DFU, water heater, fitting offsets, drain slope - HVAC: BTU load, duct sizing, CFM, refrigerant charge - Landscaping: Mulch, gravel, sod, irrigation, retaining wall, pavers 57 AREA & VOLUME SHAPES - Simple squares to L-shaped rooms, gable walls, pipe volumes, toruses - Interactive diagrams with labeled dimensions - Perimeter, surface area, and volume calculations - Construction shapes: concrete steps, retaining walls, trenches 50+ UNIT CONVERTERS - Length, area, volume, weight, temperature, pressure - Concrete bags, rebar, CMU blocks, board feet - Lumber, drywall, roofing, siding, flooring, insulation - Electrical wire gauge, conduit, circuit breakers - Plumbing pipes (PVC, copper, PEX), HVAC tonnage - Aggregates, fasteners, and more MATERIAL ESTIMATION - Board feet, stud spacing and count - Concrete volume (slabs, footings, columns) - Roofing (squares, bundles, felt, ridge vent) - Drywall, baluster/spindle spacing, fence materials PROJECT MANAGEMENT - Organize calculations by project - Rich text notes with folder organization - Photo attachments for calculations - Star/favorite frequently used calculators - Calculation history with search and filter EXPORT & SHARE - Professional PDF reports with company branding - CSV spreadsheet, PNG image, and plain text export - 7 PDF generators (rafter, stair, fence, baluster, miter, materials, estimate) CUSTOMIZATION - Dark mode / Light mode / System theme - 5 languages: English, Spanish, French, German, Arabic - Fractional resolution (1/2 to 1/64) - Imperial or Metric default units - Home screen widgets, haptic feedback, and sound effects - Company branding for all PDF exports BUILT FOR PROFESSIONALS Whether you're a general contractor estimating a bid, a framer cutting rafters, an electrician sizing wire, or a DIY homeowner planning a deck — Construction Expert A1 Pro has every calculation you need. SUBSCRIPTION INFORMATION Subscription required for full access. Choose the plan that works for you: - Monthly subscription - Yearly subscription - Lifetime access (one-time purchase, no recurring charges) Free trial available for new subscribers. Payment charged to Apple ID at confirmation of purchase. Subscriptions auto-renew unless cancelled at least 24 hours before the current period ends. Manage subscriptions in Settings > Apple ID > Subscriptions. Privacy Policy: https://www.binaryandbricks.com/app/privacypolicy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

The construction calculator your contractor doesn't want you to know about. •⁠ ⁠Calculate roof pitch, rafters, hip & valley in seconds •⁠ ⁠Feet-inches-fractions math •⁠ ⁠Stair layout from a single measurement •⁠ ⁠Concrete, drywall, studs, blocks — instant material estimates •⁠ ⁠Built-in unit conversions: metric, imperial, board feet, acres •⁠ ⁠Compound miter angles for perfect crown molding cuts •⁠ ⁠Circle, arc & polygon calculations for curved builds •⁠ ⁠3 memory registers + running total with average & count •⁠ ⁠Works offline — no internet needed on the job site

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1. First observed Aug 19, 2026 · 1:07 AM Free