# Carpentry Formulator > Carpentry and building calculation formulas and conversions for professionals. (iPhone/iPad app by Historycentral.com.) - Source: https://appshunter.io/ios/app/carpentry-formulator/id305583131 (this page in markdown: same URL + `.md`) - Developer: [Historycentral.com](https://appshunter.io/developer/1744330560) - Category: Productivity, Business - Price: Free with in-app purchases - Rating: 3.80/5 from 4 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 18.6 · 23 MB - Languages: American English - Released: 2009-02-20 - Data updated: 2026-08-23 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/carpentry-formulator/id305583131/reviews.md ## What is Carpentry Formulator? CARPENTRY FORMULATOR contains over 150 formulas that are useful for carpenters and builders. This app calculates loads on walls and loads on headers.The app calculates space between balusters, wood needed for railings It calculates Hardwood Flooring, calculations on Board Feet and Lumber conversions. It calculates the number of Joists, Sheet Rock, Concrete and Asphalt needed. The program has special sections on Roofing and Stairs. The CARPENTRY FORMULATOR has various formulas to calculate area and volumes of differing shapes. The program also includes dozens of conversions; everything from square feet to square inches and square inches to feet of water. Every result in CARPENTRY FORMULATOR shared. In the coming months there will be updates to CARPENTRY FORMULATOR that will include additional formulas. If there are formulas you would like that are not yet included, just e-mail us and we will try to include it in our next update. LOAD ON WALLS *Load on One Story Building Truss Roof *Load on One Story Building with Attic Stick Built *Load on Two Story Building with Attic Stick Roof *Total Load on Beam *Weight Header Can Carry LUMBER CALCULATION *Cost of Hardwood Flooring *Calculating Board Feet *Lumber Conversions- Board and Linear Feet MATERIALS NEEDED *Number of Joist Required *Number of Studs Required *Sheet Rock Coverage *Asphalt Needed *Cubic Yard of Concrete Needed *Coverage from Concrete ROOFING *Shed roof *Gable roof *Hip roof on square building *Gable Roof Sheathing *Shed Roof Sheeting *Hip Roof Sheeting STAIRS *Number of risers *Unit risers *Unit run *Total run Area Formulas Include: SQUARES *Area *Perimeter *Length of the diagonal RECTANGLES *Area *Perimeter *Length of base *Height *Length of diagonal PYRAMIDS *Pyramid area *Pyramid v *Volume prism SPHERES *Area of surface *Sde of cube *Volume of sphere Cylinder: *Cylinder area *Cylinder length *Volume *Capacity *Area of Cylinder Base *Length of Cylinder CIRCLES *Circumference *Radius *Diameter of Circle *Area of circle *Arc length *Degrees of arcs *Radius of arc CONES *Lateral surface area *Total surface area Ellipse:Area Hexagon:Area Parallelogram Area 200 Conversion formulas ## Key features - Load calculations for walls and headers - Material quantity estimation (joists, studs, concrete) - Roofing and stair dimension calculations - Area and volume formulas for geometric shapes - Dozens of unit conversion tools - Shareable calculation results ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Professional Features | $2.99 | one-time | ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/carpentry-formulator/id305583131/reviews.md ### 5/5 — Very useful *2026-03-01* Very useful app. Thank you. ### 1/5 — Color is impossible *2022-05-26* Black text on red or dark orange background gives me a headache, won’t use. Simplify this. ### 4/5 — Great but crashing *2022-04-30* The app is great and useful with a lot of information especially the pro app upgrade. When clicking on some of the pro features the app will crash for example the guide to carpentry and sub category finish carpentry. I would lover for you guys to fix this as this app is very useful and will be using it because it basically a “hub” for carpentry” one app does it all. I will be recommending this app to a lot of people. ### 2/5 — Ok *2011-04-13* If it were in mm rather than inches it would be ok ### 1/5 — Untitled *2010-04-04* No metric support ### 1/5 — Check Formulas *2010-01-06* The board footage formulas are off. For example 2 pcs 4x8-12'0" Should be 64 board feet, this app says 5. I'm bummed that is was 3.99 and does not work correctly! ### 3/5 — Please add *2009-04-13* Where is the stair calculator and baluster spacing. Please add ### 1/5 — Not impressed *2009-02-24* A 6m building needs 4500 joists. Stud wall is too complicated to use. ## Frequently asked questions about Carpentry Formulator ### What kind of calculations does Carpentry Formulator offer? Carpentry Formulator offers over 150 formulas for calculating loads on walls and headers, material quantities like joists and concrete, and dimensions for roofing and stairs. It also includes area and volume calculations for various shapes and dozens of unit conversions. ### Is Carpentry Formulator free to use? Yes, Carpentry Formulator is available for free. It does not have advertisements, and while it offers in-app purchases, the core functionality with its extensive formulas is accessible without cost. ### What devices is Carpentry Formulator compatible with? Carpentry Formulator is designed for use on iPhones and iPads, making it accessible to a wide range of Apple mobile device users. ### How often is Carpentry Formulator updated? The app was last updated on February 24, 2026, indicating a commitment to ongoing development and improvements. Users can expect future updates with additional formulas based on developer plans and user feedback. ### Can I share my calculations from Carpentry Formulator? Yes, every result generated within Carpentry Formulator can be shared. This feature is useful for collaboration or documentation purposes on construction projects. ### What is the user sentiment for Carpentry Formulator? Based on the available data, Carpentry Formulator has a rating of 3.3 stars from 3 ratings. This suggests a mixed but generally positive reception from its user base. ### Does Carpentry Formulator have ads? No, Carpentry Formulator is ad-free. Users can utilize all its calculation and conversion features without interruption from advertisements. ### What age rating does Carpentry Formulator have? Carpentry Formulator has an age rating of 4+, making it suitable for a broad audience including younger users who may be learning about construction or geometry. ## Version history (last 5 releases) ### 5.1 — 2026-08-13 better handling of metric calculations ### 5.02 — 2026-06-14 minor bug fix ### 5.0.1 — 2026-02-24 Minor bug fix. ### 5.0 — 2026-02-20 Totally rewritten source code. New section additional calculations, save results ### 4.0.1 — 2016-02-12 This app has been updated by Apple to display the Apple Watch app icon. minor bug fix ## Apps similar to Carpentry Formulator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Rainfall Calculator](https://appshunter.io/ios/app/rainfall-calculator/id1446150880) | 5.0 (1) | $2.99 | Productivity | | [EngiCalc](https://appshunter.io/ios/app/engicalc/id6742305878) | 5.0 (2) | Free | Productivity | | [Asphalt, Wood Moisture, Board](https://appshunter.io/ios/app/asphalt-wood-moisture-board/id384302611) | 5.0 (2) | $0.99 | Productivity | | [WoodMasterHD](https://appshunter.io/ios/app/woodmasterhd/id549052247) | — | $7.99 | Productivity | | [Epoxy River Calculator](https://appshunter.io/ios/app/epoxy-river-calculator/id6480120402) | 5.0 (3) | $0.99 | Productivity | | [Construction+](https://appshunter.io/ios/app/construction-plus/id413455174) | 5.0 (3) | $0.99 | Productivity | ## More apps by Historycentral.com - [Finance Formulator](https://appshunter.io/ios/app/finance-formulator/id294194640) - [Personal Formulator](https://appshunter.io/ios/app/personal-formulator/id296173495) - [Electrical Formulator](https://appshunter.io/ios/app/electrical-formulator/id299749412) - [Plumbing Formulator](https://appshunter.io/ios/app/plumbing-formulator/id303497783) - [Builder's Formulator](https://appshunter.io/ios/app/builders-formulator/id306247596) All apps by Historycentral.com: https://appshunter.io/developer/1744330560 ## Related topics [carpentry formulator](https://appshunter.io/ios/topics/carpentry-formulator) · [carpentry math](https://appshunter.io/ios/topics/carpentry-math) --- *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 2026-08-23.*