Construction Master Pro

Construction Master Pro

10,000 - 50,000 downloads

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Advanced Feet-Inch-Fraction Construction-Math Calculator by Calculated Industries for Carpenters, Builders & More.

The official Construction Master® Pro from Calculated Industries for your Android device includes two models: #4065 and #4080 (CM Pro with Trig). 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 Android 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 calculate a construction problem when meeting with a client? Left your calculator in the truck? Just pull out your Android device, 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.
• Calculate 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.

• 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 Android device 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

Dimensional Math and Conversions
• Feet-Inch-Fraction, Inch Fraction, Yards
• Decimal Feet (10ths, 100ths), Decimal Inches
• Preset Fraction Conversions (1/2" through 1/64")
• D:M:S, Decimal Degree Entry and Conversions
• Full Metric Conversion Function (m, cm, mm)

Right Angle Solutions
• Complete Right Angle/Rafter Calculations
• Pitch Key (Slope and Grade)
• Calculate Rise, Run, Diagonal/Common Rafters
• Hip/Valley Key
• Jack Rafters Key
• Irregular Hip/Valley and Jacks
• Calculate Rafter Cutting Angles (Plumb, Cheek and Level Cuts)
• Stair Layout Key
• Stair (Advanced Stair Calculations – Stair 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
• Calculate 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
• Paperless Tape
• 4 Memories

Ideal for Architects, Builders, Contractors, Building Designers, Draftspersons, Engineers, Framers/Carpenters and Tradesmen

Construction Master® is a registered trademark of Calculated Industries, Inc.

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Recently changed in this version

Bug fix to resolve "stuck on Introduction page" on initial launch for some users, of uncertain devices, of uncertain carriers, of uncertain Android OS versions - yes, it's like that).

Screenshots Construction Master Pro
View bigger - Construction Master Pro for Android screenshot
View bigger - Construction Master Pro for Android screenshot
Comments and ratings for Construction Master Pro
  • (77 stars)

    by rama naik on 29/06/2014

    This calci is one of the best for architecture

  • (77 stars)

    by Damian DeLeon on 03/06/2014

    Use it for scaling, squaring and calculating materials. Beats my $50 standalone calculator.

  • (77 stars)

    by Harlin Carey on 03/06/2014

    Awesome app.sure makes my job way more efficient. I would strongly recommend this app to from do it yourself people to construction professionals

  • (77 stars)

    by Logan Dougall on 30/05/2014

    This is a great app for when you've forgotten the real calculator somewhere, but it doesn't have a back button for entry! This can be problematic when you've only transposed some numbers but have to start over whatever calculation you're working on to correct it... I hope that can be added back in and move the clear to the top like the physical calculator. The swipe from left to right is current

  • (77 stars)

    by Lloyd Baldridge on 15/05/2014

    Have the calculator version. Decided to try the app. Very pleased.

  • (77 stars)

    by Tim Kaylor on 02/05/2014

    Works well, and when I had a small problem, contacted the support people. I had a response in actually just a few minutes and got the problem resolved easily. Get this one. It works. and they have great support.

  • (77 stars)

    by Nick DiPenta on 30/04/2014

    Exactly like the original calculator, but better. Has an online how to menu that helps you all of the functions.