About Construction Master Pro Calc
FREE 14-day trial. The go-to construction calculator for framers, contractors, and builders. Feet-inch-fraction math , roofing, framing, stair layouts, and material estimates in one app. The professional constructi
FREE 14-day trial. The go-to
construction calculator for framers, contractors, and builders.
Feet-inch-fraction math , roofing, framing, stair layouts, and
material estimates in one app.
The professional construction calculator built for the field. Includes Construction Master Pro and Construction Master Pro Trig in one app, with the CMPro Training Guide built in.
The proven framing, roofing, and stair calculator trusted by contractors and builders. 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
• Framing and carpentry made faster: rafter cuts, stair layouts, lumber quantities, and framing calculations on the job.
• Roofing contractors: roofing calculations for bundles, squares, pitch, and slope in seconds.
• Builders and general contractors: construction estimates, material takeoffs, and building layouts done right.
• Concrete and masonry: footing volume, block counts, and unit conversions calculated instantly.
WHY PROFESSIONALS CHOOSE CONSTRUCTION MASTER® PRO
• Powerful built-in calculations make this construction calculator 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 for all functions
• 4 Memories
APP-ENHANCED FEATURES
• Fast Fractions Mode: dedicated fraction keys for faster, more precise construction calculations.
• Construction notes made easy: create text or voice-to-text notes, set up folders by project or client, add attachments, and share with your crew.
• Searchable Help and how-to videos for every construction calculation.
• Context-sensitive Help: press and hold any function key for Help text, diagrams, and videos.
• Save and share construction calculations and outputs (e.g., cut lists) with others on your crew.
SUBSCRIPTION INFORMATION
TRADEMARKS
Construction Master® and Calculated Industries® are registered trademarks of Calculated Industries, Inc.
Copyright 2026
Previous Versions
Here you can find the changelog of Construction Master Pro Calc since it was posted on our website on 2015-04-25 03:00:00.
The latest version is 10.20.18 and it was updated on 2026-10-17 05:48:14. See below the changes in each version.
Construction Master Pro Calc version 10.20.18
Updated At: 2026-08-17
Changes: Maintenance and compliance updates.
Construction Master Pro Calc version 10.20.11
Updated At: 2026-07-06
Changes: Crash fix.
Construction Master Pro Calc version 10.20.9
Updated At: 2026-06-19
Changes: Maintenance updates.
Construction Master Pro Calc version 10.20.8
Updated At: 2026-01-15
Changes: Play Store compliance updates.
Construction Master Pro Calc version 10.20.6
Updated At: 2025-11-19
Changes: Unitless rounding fix
Stored settings toggle fix
Construction Master Pro Calc version 10.20.1
Updated At: 2025-09-29
Changes: New! Expanded display and thousands separator.
Construction Master Pro Calc version 10.18.7
Updated At: 2025-03-24
Changes: Android navigation bar (gesture navigation)/3-button navigation updated.
Construction Master Pro Calc version 10.18.6
Updated At: 2025-03-12
Changes: UI updates:
- new Full Screen Mode (icon next to menu at top of screen to toggle on/off, and access Settings for full-time Full Screen Mode)
- new bottom toolbar to easily access other areas of the app
Help update:
- new full-text search Help (access Help, easily find what you're looking for)
Bosch Integration:
- send measurements to your calculator OR to your Notes
- works with Bosch laser distance measurers with Bluetooth
Construction Master Pro Calc version 10.17.3
Updated At: 2024-08-22
Changes: New - Fast Fractions! Reduce key presses when entering fractions, see Settings mode Fast Fractions to enable, access from Settings at top right of calculator screen.
New - Notes! Abandon writing notes on scrap wood and yellow pads, type or speak your field notes directly in your CMPro app (for subscribers), access from Menu at top left of calculator screen.
Updated - Menu! and Settings! are super easy to find, look up to top of the calculator screen!
Construction Master Pro Calc version 10.13.7
Updated At: 2023-12-20
Changes: updated to billing library v6.0.1
