# Construction Expert A1 PRO — Feet Inch Fraction Calculator > Professional construction calculator for dimensions, framing, trades, and material estimation. (iPhone/iPad app by Binary And Bricks Pvt Ltd.) - Source: https://appshunter.io/ios/app/construction-expert-a1-pro/id6757102187 (this page in markdown: same URL + `.md`) - Developer: [Binary And Bricks Pvt Ltd](https://appshunter.io/developer/1587170688) - Category: Productivity, Utilities - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 67 MB - Languages: American English - Released: 2026-02-28 - Data updated: 2026-08-22 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/construction-expert-a1-pro/id6757102187/reviews.md ## What is Construction Expert A1 PRO? 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/ ## Key features - Feet-inch-fraction math - Right angle and roof framing - Stair layout calculations - Trade-specific calculators (Electrical, Plumbing, HVAC) - Area and volume calculations for 57 shapes - Material estimation tools - Project management and export options ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Construction Expert Monthly Sub | $2.99 | per month | | Construction Expert Yearly | $14.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Construction Expert Lifetime Access | $24.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/construction-expert-a1-pro/id6757102187/reviews.md ### 5/5 — Best app *2026-08-02* Lifetime purchase is game changer **Developer response:** Thank you for the fantastic 5-star review! We’re happy to know you find the lifetime purchase of Construction Expert A1 PRO a game changer. It’s great to hear that the one-time purchase model adds real value to your experience. We’re glad to have you with us! ## Frequently asked questions about Construction Expert A1 PRO ### What is Construction Expert A1 PRO? Construction Expert A1 PRO is a professional calculator app designed for construction professionals. It offers a wide range of calculations for framing, stair layout, trade-specific needs, material estimation, and more, aiming to replace expensive hardware calculators. ### What types of calculations can Construction Expert A1 PRO perform? It supports full feet-inch-fraction math, right angle and roof framing, stair layout, and specialized calculations for electrical, plumbing, and HVAC trades. It also includes area and volume calculations for numerous shapes and material estimation tools. ### Can Construction Expert A1 PRO help with material estimation? Yes, the app includes material estimation features for board feet, stud spacing, concrete volume, roofing materials, drywall, and fence materials, helping users accurately plan and budget for projects. ### Does Construction Expert A1 PRO offer project management features? Yes, it allows users to organize calculations by project, add rich text notes, attach photos, and access calculation history with search and filter options, aiding in project organization. ### What export options are available in Construction Expert A1 PRO? You can export calculations as professional PDF reports with company branding, CSV spreadsheets, PNG images, and plain text. It also includes specific PDF generators for various construction elements. ### What languages does Construction Expert A1 PRO support? Construction Expert A1 PRO supports 5 languages: English, Spanish, French, German, and Arabic, making it accessible to a global user base. ### How often is Construction Expert A1 PRO updated? The app was last updated on April 27, 2026, indicating recent development and support. The latest version is 1.0.6. ### What is the pricing for Construction Expert A1 PRO? Construction Expert A1 PRO is free to download and use, with optional in-app purchases. Subscription plans include 'Construction Expert Monthly Sub' for $2.99/month and 'Construction Expert Yearly' for $14.99/year, both offering a 7-day free trial. ## Version history (last 5 releases) ### 1.1.0 — 2026-08-18 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 ### 1.0.9 — 2026-08-02 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 ### 1.0.8 — 2026-08-01 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 ### 1.0.7 — 2026-07-20 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 ### 1.0.6 — 2026-04-27 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 ## More apps by Binary And Bricks Pvt Ltd - [Concrete Calculator All In One](https://appshunter.io/ios/app/concrete-calculator-all-in-one/id1587170686) - [Construction Calculator A1 Pro](https://appshunter.io/ios/app/construction-calculator-a1-pro/id1587368490) - [Unit Converter A1](https://appshunter.io/ios/app/unit-converter-a1/id1588554636) - [Financial Calculator India](https://appshunter.io/ios/app/financial-calculator-india/id1588612062) - [Construction Calculator A1](https://appshunter.io/ios/app/construction-calculator-a1/id1589484051) - [Metal Calculator A1 Pro](https://appshunter.io/ios/app/metal-calculator-a1-pro/id1589637862) All apps by Binary And Bricks Pvt Ltd: https://appshunter.io/developer/1587170688 ## Related topics [construction calculator a1](https://appshunter.io/ios/topics/construction-calculator-a1) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*