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Construction Master 5 App
Model 4120/4129

[+] Overview

Construction Master Power and Versatility - On Your Smartphone or Tablet

  • ALL of the functionality of your Construction Master 5 calculator
  • No learning curve -- just one powerful, easy-to-use app
  • Full User's Guide built in as well as ability to press and hold a key for specific help!

The Construction Master 5 app gives you the same features and functions as the powerful, popular and easy-to-use Construction Master 5 construction-math calculator.

Ideal for Contractors, Builders, Architects, Engineers, Tradespersons and Advanced Do-It-Yourselfers

Need to quickly and accurately solve a construction problem? Pull out your smartphone or tablet, tap on the Construction Master 5 icon, and you'll have your answer in seconds.

  • All the functionality and solutions of the handheld Construction Master 5 and optimized for the smartphone or tablet user.
  • Solve tough construction-math problems and reduce errors and save time and money.
  • Built-in help - just press and hold the desired key for full, clear definitions, explanations and examples of keystrokes.

[+] Details
Dimensional Math and Conversions
  • Feet-Inch-Fraction, Inch Fraction, Yards
  • Decimal Feet (10ths, 100ths), Decimal Inches
  • Preset Fractions (1/2" through 1/64")
  • 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
  • Stair Layout Key
  • Diagonal Key
  • Expanded Rake-Wall
Area and Volume Solutions
  • Square and Cubic
  • Basic Circular Calculations
  • Weight per Volume Conversions
Special Functions
  • Board Feet
  • User-Definable Preferences
  • Entry Editing Backspace - with a swipe of a finger
  • Cost per Unit (Total costs based on unit price)
  • Paperless Tape
  • Memory function

[+] Reviews
Overall Rating Full StarFull StarFull StarFull StarFull Star
5 out of 5 
User Reviews
iPhone 4 5 out of 5.0
User: , Millwright from USA
User Rating: ★ ★ ★ ★ ★
Great app!! Love it!!!!

Thank you! 5 out of 5.0
User: , Foreman of Golden State Framers from Placentia, CA
User Rating: ★ ★ ★ ★ ★
I've had your calculaters for 15 years or more. Now that I have it on my iPhone, I alway have a backup calculator wherever I am. Very functional product for my phone at a fair price.

[+] Support Materials