Work Smarter, Build Better, and Improve Your Bottom Line! We've taken the best features of the original Construction Master IV, added some useful new "Pro" functions, and made it even easier to use! An essential jobsite "tool." It's the most complete Builder's Calculator on the market!

The Construction Master Pro calculator was designed specifically for builders, general contractors, construction foremen or superintendents, carpenters, framing contractors, concrete/foundation contractors, remodelers and other construction pro's.

• Dimensional Math and Conversions: Work Directly in Feet, Inches, Fractions, Yards and Metric
• Handles All Fractions-1/2's, 1/4's, 1/8's, 1/16's, 1/32's, 1/64's
• Instant Area and Volume
• Easy Right Angle and Rafter Calculations, Including Slopes, Square-Ups,
• Common Rafter Lengths
• Regular and Irregular Hip/Valley Rafter Lengths
• Regular and Irregular Jack Rafter Lengths
• Complete & Enhanced Stair Riser/Tread Solutions, for Fast and Accurate Stair Layout
• Board Feet/Lumber Estimation
• Per Unit Material Cost
• Six Material Estimation Functions, Including: Block, Brick, Column, Cone, Footing, Roof Custom Rafter Settings, such as Ascending or Descending Lengths
• Plumb, Level and Cheek Cut Angles
• Improved Rake Wall Function
• Advanced Circle Solutions
• D:M:S to Decimal Degree Conversions
• Acres, Kilograms, Pounds, Tons and Metric Tons Conversions
• Handy Backspace Key
• Memory Storage Keys
• User Set Preferences
• Paperless Tape
• Works as a Regular Calculator