Construction Master Pro

Construction Master Pro

  • Category: Utilities
  • Release Date: 2010-05-05
  • Current Version: 1.5.2
  • Adult Rating: 4+
  • File Size: 41.31 MB
  • Developer: Calculated Industries
  • Compatibility: Requires iOS 9.0 or later.
  • Rating Count: 207


Two in one: the official Construction Master® Pro from Calculated Industries for your iPhone and iPad includes two models: #4065 and #4080 (CM Pro with Trig). And while perhaps obvious, if you change from an iOS device to a non-iOS device, you WILL need to buy a new license as they are incompatible. Advanced Feet-Inch-Fraction Construction-Math Calculator by Calculated Industries, built with the same features and functions, and with the same core engine that powers the industry-standard advanced construction-math calculators from Calculated Industries. You’ll actually get two apps in one, since the Construction Master Pro for iPhone has all the functionality of the Construction Master Pro and the Construction Master Pro Trig -– and includes a full User’s Guide built in, as well as the ability to press and hold a key for specific help! Ideal for Architects, Builders, Contractors, Designers, Draftspersons, Engineers, Framers/Carpenters and Tradesmen Need to quickly and accurately solve a construction problem when meeting with a client? Left your calculator in the truck? Just pull out your iPhone or iPad, tap on the Construction Master Pro icon, and you’ll have an answer in seconds! • You get ALL of the functionality of the handheld Construction Master Pro and Construction Master Pro Trig calculators in one powerful, easy-to-use app. • Solve tough construction-math problems and reduce errors on the jobsite or in the office. • Reduce costly errors and save time and money. It will help you and your crew on every phase of your projects—estimating, bidding and building. FEATURES: • Created by Calculated Industries, the originator of the award-winning Construction Master calculators • All the functionality and solutions of the handheld Construction Master calculators and optimized for the iPhone/iPod Touch user • Entry Editing Backspace Key – with a swipe of a finger (left - to - right) • A complete User’s Guide in English or Spanish is available free at • Full trigonometric function: sine, cosine, tangent, arcsine, arccosine and arctangent • Powerful built-in solutions make it ideal for completing layouts, plans, bids and estimates • Work in and convert between all building dimensional formats: feet-inch-fractions, inch fraction, yards, decimal feet (10ths, 100ths), decimal inches and metric (m, cm, mm) • Built-in right angle functions simplify square-ups, rafters, slopes and more BUILT-IN SOLUTIONS: Dimensional Math and Conversions • Feet-Inch-Fraction, Inch Fraction, Yards • Decimal Feet (10ths, 100ths), Decimal Inches • 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 Rafters • Hip/Valley Key • Jack Rafters Key • Irregular Hip/Valley and Jacks • Rafter Cutting Angles (Plumb, Cheek and Level Cuts) • Stair Layout Key • Stair (Advanced – Riser Limit, Stairwell Opening, Headroom, Floor Thickness) • Diagonal Key • Expanded Rake-Wall • Arched Rake-Wall 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 Circular Calculations • 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 for all functions • 4 Memories TRADEMARKS: Construction Master® is a registered trademark of Calculated Industries, Inc.



  • I want my money back

    By carpenteLINY
    I want my money back I want my money back I want my money back
  • Recently started showing Ads

    By briantd
    This is an expensive paid app, and yet I’m now being shown ads. Does the hardware version show ads as well? #fail
  • No Advertising!!

    By Helipilot77
    If I am going to pay $25 for an app I certainly don’t want to be advertised too. The calculator is great. I prefer it to the hardware based version because the manual is built in, my rating is based solely on their recent decision to advertise to a paying customer.
  • Always have it with me!

    By gotnospice
    This is great! And even better then the physical one you can easily get help on a button by long pressing it! Great idea!
  • Exactly what I wanted

    By 1bdashrlydvdson
    As a carpenter I have used a construction master from foundations to roofs, and everything in between. When I wasn’t wearing my tool pouches I was always running back to the truck to get my calculator. Now it’s always by my side.
  • Great!

    By rberg76
    I love it please update for iPhone X 🙏🏻
  • Architect necessity

    By MDaltezza
    I use this app daily! Saves me a lot of time and don’t think I could be as efficient without it.
  • Very good app for my iPhone and me love it

    By Menom86
    Very good app for my iPhone but me and love
  • Better than the actual calculator

    By ConcreteProdigy
    I have been using this calculator for years as a concrete business owner. After breaking and losing so many of these I finally just downloaded the app and boy was I pleased. It's crisper easier to use and honestly going to save me money and heartache when I can't find my Calc. Ty for this Very satisfied customer
  • Everyday App

    By CB GC
    There's no questioning this app purchase if you call yourself a builder. The very same as the physical version, why carry two things when you can't even order a pizza from your clunky construction master!!?
  • Perfect Calculator

    By Joeatree
    I've used this in the field for years now. It does a great job adding inches together.
  • Phone is always on me with this app.

    By Readal
    Love this as I always have my phone on me and don't have to carry another calculator all the time. Works great!!!!
  • Crashes

    By SteelyHead
    It crashes.
  • Disappointed User of Physical Calculator and App

    By Stonebent
    I have used the actual physical Construction Master Pro for years with no issues. It was essential to my work as a carpenter. The app has been great and in some instances superior to my original calculator. One example would be that I don't need to carry around the little instruction book because it built into the app. Now my app crashes. I needed to get a stud count for some walls and it kept giving me an error. I checked the help section to verify that I was doing it correctly. I was, so I checked the on center spacing and it said zero. Great, no problem, I will just go to preferences and set up the right spacing. Nope, it crashes every time I go into preferences. Please fix!
  • Stair function stopped working

    By Rbnjwilliams
    Tried deleting and reinstalling to see if it would reset stair function but it won't let me reinstall...
  • Crashing

    By Disappointed18374
    Hit reset
  • App Crash

    By Ttucker68
    With new iOS, app crashes when I go to preferences.
  • ????

    By Levimatron
    App won't open. Had this app for years with no problem. Very disappointed
  • App is crashing

    By No1guthrie
    When I go into preferences it crashes on my iPad and iPhone. The update erased all of my presets.
  • Won't update

    By BigRed66300
    It started updating and just stopped halfway through the installation. It has ben great until this. Can't even use it now.
  • Perfect conversion

    By veryken
    My physical version died recently after 10 years of constant use. I was searching for a replacement unit, looking at the same physical version selling for the same price as 10 years ago, and was worried about how the cheap circuitry could go bad again. But then discovering this app and using it for a day made me a perfect evangelist. In my iPad in portrait mode, it is truly a superior version. Gives another purpose to my iPad Air. The only minor downsides are no keyboard input and the first tap is always not audible. But trivial complaints. I love it.
  • The Best!

    By J-$Money
    This is the best calculator for you if you are in the construction industry, hands down!
  • Excellent calculator !!!

    By ™lol™
    Make my job lot easier as a pipe-fitter
  • Works Perfectly.

    By M11pT
    Still own the calculator. It still works great. The app has the same functionality and the convenience of it being on my phone. Totally worth it.
  • The best

    By Tired of picking a nickname 55
    You won't be disappointed with this purchase.
  • La queremos en español Latinoamérica

    By Mochoag
    El programa es bueno pero me gustaría que ya viniera en español como la versión de calculadora de escritorio que ya poseen es muy buena y practica.
  • Must have

    By dwm.jr
    This is a must have for any construction pro.
  • Greatest construction app

    By DcMyo
    Awesome app. Best help anytime at your fingertips. Can do just about anything you need to do on the job site.
  • bão demais uai

    By RachelY
    xiki todo, qualquer burro da conta de usar
  • Great tool

    By BroBroBaggins
    I'm not a master builder. The master builder I work for told me to get this app and learn how it works so that I may save him the time of ordering yards of concrete, floor joists and sheeting, rafter lengths, window/door trim packs, etc. From zero to job site hero for only $20. Construction Master has found a way to keep me valuable.
  • Great for Framing

    By whateverjustin
    Best calculator for construction. I have the physical calculator too. I've been using this for 13 years on the job site. Love it
  • Nice!

    By Akbaize
    I used to have to carry a contractors calculator - retail $69. Now I have this app - does all the same computations for a fraction of the cost....and I don't have to carry another device. Let's be honest, our phones are with us always :) ..... And I like the quick tips video at initial launch. Very helpful!
  • iOS 7

    By Josh2690
    Please get the update for iOS 7 ASAP! I love the app but this is the only one that is not working on iOS 7. Yes I am a developer and I understand iOS 7 has not released, but I really don't want to downgrade back to iOS 6 for one app! Thanks and keep up the good work!!!!
  • Uhh

    By Jacques Gene
    Great app but doesn't work in iOS7
  • Cm pro construction

    By Fidort
    It is a good construction calculator .
  • Great app for Architects

    By Nemotarius
    I have the hand held version of this calculator and find it so handy in my everyday use. I was very happy to see I can have a version on my phone too. Great work CI!
  • Best App for Contractors

    By Alex15655
    I am a PM and this is the most useful app I have ever come across. I use it multiple times a day. Now updated for iPhone 5.
  • Construction calculator

    By Notpitt
    I have been using these for years and now have added it to my phone. This one less item that I need to carry around the job site. As a superintendent, this has become one of my most useful tools. I recommend that all builders to use this.
  • Owner

    By Hammer1970
    This does not fit my I phone 5 screen. But maybe there will be a update other than that it seems to work just like the real thing
  • Not formatted for iPhone 5

    By Jtgr6
    Please update for iPhone 5 screen. I will change it to 5 stars when this happens because other than that it is a great app.
  • Top App For Builders

    By Build 1
    Works perfectly on iPhone 5, just like stand alone unit, no need to carry calculator and phone.
  • Buggy

    By Lunajuan29
    Since the latest update I've experience crashes and app freezes on 6.0 iPhone 5. Please fix I've used this app for a year already and when I need it it decides not to work as previous versions did
  • Jbon

    By Jbon!!
    Works great!!! So convenient, I don't have to carry the actual calculator. I can do it straight from my phone. Sweet!!!!
  • Great App

    By Mlongbsa
    I used this daily when I worked for a home improvement retail chain to calculate job quantities for customers. Works like a charm and easy to follow instructions if the user forgets formulas.
  • Perfection

    By MatthewCWI
    Perfection. Just like the real thing. Awesome app!
  • NO PRO

    By disappointed619
    When I saw this app I was thrilled to have a tool I use all the time on my phone. However it does not have a function a true construction master PRO has which I use often (finding a radius arch in a rise/run condition) making this app more like a construction master IV. I feel I was miss led by this apps title and would not have fished out 20 bucks had I known.
  • great product

    By DanOlind
    This is an awesome tool - I've had the calculator (Model 4060) for years and use it often as a constrution estimator/PM. Now I always have it handy. Good work CII team.
  • Love it!

    By Michael V.
    As a draftsman by trade, I use this app every day at work & it's by far- the best construction calculator out there. Well worth the $20. The normal calculator is $80, so this app is a bargain, and i don't have to carry anything extra when I go to job sites, which is a definite plus.
  • My favorite app.

    By OverKill LLC.
    Best construction calculator ever. I use this tool faithfully.