Construction Master Pro Calc

Name: Construction Master Pro Calc
Rating: 4.8 (37976 reviews)
Author: Calculated Industries

Feet Inch Fraction Calculator

Free · In‑App Purchases · Designed for iPad

38K Ratings
Age Rating

13+
Years
Category

Utilities
Developer

Calculated Industries
Language

EN
English
Size

112.9
MB

Ask CMPro is here. Tell it what you need to calculate and get exact steps instantly. AI built on CMPro's proven construction math. Included with your subscription. FREE Try Before You Buy 14 Day Trial; your App Store account is not charged by Apple during the free trial. Rated 4.8 stars with over 1.12M downloads. The trusted construction calculator used by professionals across the US and the world. The go-to feet-inch-fraction calculator for framers, contractors, and builders. Includes Construction Master Pro and Construction Master Pro Trig in one app, with the CMPro Training Guide built in. Built with the same core engine that powers the industry-standard advanced construction-math calculators from Calculated Industries. Award-winning tools trusted by the industry for 40 years. BUILT FOR THE JOBSITE • Framers and carpenters: rafter cuts, stair layouts, lumber quantities, and framing calculations on the job • Builders and general contractors: estimates, material takeoffs, and building layouts • Concrete and masonry: footing volume, block counts, and unit conversions • Roofing contractors: bundles, squares, pitch, and slope in seconds WHY PROFESSIONALS CHOOSE CONSTRUCTION MASTER® PRO • Powerful built-in calculations make CMPro ideal for completing layouts, plans, bids, and estimates • Work in and convert between all common building dimensional formats US & Metric • Built-in right angle functions simplify square-ups, rafters, slopes, and more • Handles framing, roofing, concrete, lumber, and stair calculations in one app • Full trigonometric functions for advanced construction math BUILT-IN SOLUTIONS • Dimensional Math and Conversions • Feet-Inch-Fraction, Inch Fraction, Yards • Decimal Feet and Inches (10ths, 100ths) • Preset Fractions (1/2" through 1/64") • D:M:S, Decimal Degree Entry and Conversions • Full Metric Function (m, cm, mm) RIGHT ANGLE SOLUTIONS • Complete Right Angle/Rafter Calculations • Pitch Key (Slope and Grade) • Rise, Run, Diagonal/Common Rafter Keys • Regular and Irregular Hip/Valley & Jack Rafter Keys • Rafter Cutting Angles (Plumb, Cheek, and Level Cuts) • Stair Layouts (including – Riser Limit, Stairwell Opening, Headroom, Floor Thickness) • Rake-Wall (including Arched) AREA AND VOLUME SOLUTIONS • Square and Cubic • Roof – Bundles, Squares, 4x8 Sheets, Pitch, Plan Area • Drywall, Siding and Paneling 4x8, 4x9 and 4x12 • Column/Cone Area and Volume • Basic & Advanced Circular Calculations • Weight per Volume Conversions • Length, Width, and Height Keys • Blocks, Footings SPECIAL FUNCTIONS • Trigonometric Function Keys: Sine, Cosine, Tangent, Arcsine, Arccosine, Arctangent • Board Feet • Studs: Find number On-center • User-Definable Preferences • Cost per Unit (total costs based on unit price) • Equal-Sided Polygon • Compound Miters • Crown Angle • Advanced Paperless Tape • 4 Memories APP-ENHANCED FEATURES • Ask CMPro – exact steps for any calculation. AI built on CMPro’s proven math • CMPro Toolbelt -- quick access to every tool, customizable for your workflow • Fast Fractions Mode -- dedicated fraction keys for faster, more precise entry • Materials Mode -- streamlined estimating for drywall, roofing, lumber, and more • Project Notes -- create text or voice-to-text notes, set up folders by project or client, add attachments, and share with your crew • EZ Calcs – 100+ forms-based calculators with illustrations for framing, concrete, roofing quantities, and much more. • Searchable Help and how-to videos • Context-sensitive Help -- press and hold any function key for Help text, diagrams, and videos • Save and Share calculations and outputs (e.g., cut lists) with others on your crew • Bosch GLM integration -- send measured values into live calculations or Notes SUBSCRIPTION INFORMATION Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel in Apple account Settings > Account (Apple ID) > Subscriptions. TRADEMARKS Construction Master® and Calculated Industries® are registered trademarks of Calculated Industries, Inc. Copyright 2026

Ratings & Reviews

4.8

out of 5

38K Ratings

Construction Master Pro
10/04/2023

1carpenter
I have used some version of this calculator for I believe the better part of thee decades now. I love the convenience of it being on my phone which is with 24/7. The only draw back is the screen shutting of and having to reopen my phone every time I want to enter something that it took a little bit of time to verify or measure. This could be changed in settings I am aware but as most of us, I don’t want my phone laying open indefinitely. For large projects I still use the stand alone calculator of the Construction Master Pro. The convenience of it always being with you without having to carry an extra device and how easy it is to load updates, makes it a must have for all serious carpenters or tradesmen. Well done! Ron

Developer Response
Thanks very much for the great review
Construction Master Pro
10/04/2023

1carpenter

I have used some version of this calculator for I believe the better part of thee decades now. I love the convenience of it being on my phone which is with 24/7. The only draw back is the screen shutting of and having to reopen my phone every time I want to enter something that it took a little bit of time to verify or measure. This could be changed in settings I am aware but as most of us, I don’t want my phone laying open indefinitely. For large projects I still use the stand alone calculator of the Construction Master Pro. The convenience of it always being with you without having to carry an extra device and how easy it is to load updates, makes it a must have for all serious carpenters or tradesmen. Well done! Ron
Developer Response 10/05/2023
Thanks very much for the great review
Why $40/year?
03/26/2024

Oct8ne
I was recommended this app by a framer. Apparently there are physical calculators you can buy, but the framer loves having it on his phone. What we didn’t realize was that the app switched to a subscription fee some time ago. The physical calculator can last years if taken care of, so your purchase will be distributed over time until you need to purchase a replacement. But the subscription price of this app is nearly equivalent to buying a new calculator EVERY YEAR! I understand that a one time app purchase for a company switching from physical to digital is not sustainable since the app will go with you from phone to phone, whereas the physical product gets repurchased. Here’s my suggestion: keep the subscription model, but reduce the cost to reflect the average lifespan of the physical calculator. Then the decision your customers will make is “If I am paying basically the same amount either way, would I rather have digital on my phone with me everywhere or a physical calculator that doesn’t cost as much to replace as my phone if it breaks. Unfortunately, the current subscription model is undermining the value of this product. And for me, turns me away. I will check back later to see if the company has made any changes.Edit: In response to the developer; some people do not want or need extra features and just want a mobile construction calculator. Consider making different subscription tiers that unlock the newer features you are developing. Let your customers choose what they buy into.

Developer Response
Thank you for the feedback. We're continuing to evolve our mobile platform, which takes a lot of work from the folks in Carson City, NV, USA. There are features on the way you cannot find on a calculator, thank you for looking, appreciate your perspectives.
Why $40/year?
03/26/2024

Oct8ne

I was recommended this app by a framer. Apparently there are physical calculators you can buy, but the framer loves having it on his phone. What we didn’t realize was that the app switched to a subscription fee some time ago. The physical calculator can last years if taken care of, so your purchase will be distributed over time until you need to purchase a replacement. But the subscription price of this app is nearly equivalent to buying a new calculator EVERY YEAR! I understand that a one time app purchase for a company switching from physical to digital is not sustainable since the app will go with you from phone to phone, whereas the physical product gets repurchased. Here’s my suggestion: keep the subscription model, but reduce the cost to reflect the average lifespan of the physical calculator. Then the decision your customers will make is “If I am paying basically the same amount either way, would I rather have digital on my phone with me everywhere or a physical calculator that doesn’t cost as much to replace as my phone if it breaks. Unfortunately, the current subscription model is undermining the value of this product. And for me, turns me away. I will check back later to see if the company has made any changes.Edit: In response to the developer; some people do not want or need extra features and just want a mobile construction calculator. Consider making different subscription tiers that unlock the newer features you are developing. Let your customers choose what they buy into.
Developer Response 03/25/2024
Thank you for the feedback. We're continuing to evolve our mobile platform, which takes a lot of work from the folks in Carson City, NV, USA. There are features on the way you cannot find on a calculator, thank you for looking, appreciate your perspectives.
Recommendation
06/21/2024

Uselesssssssssssssss
I’ve been using this calculator for well over 20 years now. As a young man starting out in the trades, it was a big investment to buy $70 to have on the site, but I did it. As soon as the app became available, download it in 2005 or 2006 I have had no issues with the app or the calculators that I own they work extremely well, however, and that is a big however, when I recommended this app to my new hires, they told me it cost $20 a month. Since it’s clear people involved with calculators know how math works equivalent cost of this app over the next 16 years would be $3840!!! There is no way in good conscience that I can recommend this to any young man starting out in the trades. Any calculator can do this math for you. It just not worth it.

Developer Response
Hello, no, definitely that is not our pricing. Yes the app has switched to a recurring payment, that is due to the ever changing valuable features we create and support. The app comes with a no-risk free 7 day trial to try before buying, pricing is shown in App Store as well as at start of trial, again what you mentioned is not correct regarding pricing. Thank you for the feedback.
Recommendation
06/21/2024

Uselesssssssssssssss

I’ve been using this calculator for well over 20 years now. As a young man starting out in the trades, it was a big investment to buy $70 to have on the site, but I did it. As soon as the app became available, download it in 2005 or 2006 I have had no issues with the app or the calculators that I own they work extremely well, however, and that is a big however, when I recommended this app to my new hires, they told me it cost $20 a month. Since it’s clear people involved with calculators know how math works equivalent cost of this app over the next 16 years would be $3840!!! There is no way in good conscience that I can recommend this to any young man starting out in the trades. Any calculator can do this math for you. It just not worth it.
Developer Response 06/22/2024
Hello, no, definitely that is not our pricing. Yes the app has switched to a recurring payment, that is due to the ever changing valuable features we create and support. The app comes with a no-risk free 7 day trial to try before buying, pricing is shown in App Store as well as at start of trial, again what you mentioned is not correct regarding pricing. Thank you for the feedback.
Best little calculator
11/23/2023

Tlidahl
I had purchased the stand alone calculator many years ago and the app at least 4 year’s ago. The calculator holder on my tool belt is a perfect fit for my phone. This is a great app as well as the stand alone. Best of all the help and manual is one click away if happen to forget the keystrokes for the stair layout or any other function. The app is similar in cost to the stand alone, but I would still own both. When I do not have phone in my tool belt the calculator is there. The new calculators have a tough plastic shell and the older version have an opening cover like a notebook. So I guess I own three. This is a great calculator layout for a builder.

Developer Response
Thank you very much for the great review.
Best little calculator
11/23/2023

Tlidahl

I had purchased the stand alone calculator many years ago and the app at least 4 year’s ago. The calculator holder on my tool belt is a perfect fit for my phone. This is a great app as well as the stand alone. Best of all the help and manual is one click away if happen to forget the keystrokes for the stair layout or any other function. The app is similar in cost to the stand alone, but I would still own both. When I do not have phone in my tool belt the calculator is there. The new calculators have a tough plastic shell and the older version have an opening cover like a notebook. So I guess I own three. This is a great calculator layout for a builder.
Developer Response 11/27/2023
Thank you very much for the great review.

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Seller: Calculated Industries, Inc.
Size: 112.9 MB
Category: Utilities
Compatibility: Requires iOS 15.0 or later.

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Languages: English
Age Rating: 13+

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