The Construction Master Pro sets the industry standard again! It's the most advanced construction-math calculator ever developed. With many new solutions and expanded preference selection, it's still easy-to-use in the field or office. Get the job done right the first time with fast, accurate solutions to all your construction problems. Perfect for completing bids, estimates and layouts - save time, money materials and frustration.

More sophisticated and easier to use than ever before, the Construction Master Pro Advanced Construction-math Calculator from Calculated Industries is the most complete builder's calculator on the market! Designed for builders, general contractors, carpenters, framing contractors, concrete/foundation contractors, remodelers and other construction professionals, the Construction Master Pro features powerful new built-in solutions for more accurate bids and less waste. Perfect for completing layouts, bids and estimates, the Construction Master Pro saves time, money, materials and frustration by quickly converting all building dimensional formats with custom-set fractions. Your purchase includes a protective hard case, user guide, field guide and long life.

• Dimensional Math and Conversions
• Work Directly in Feet, Inches, Fractions, Yards and Metric
• Handles All Fractions: 1/2, 1/4, 1/8, 1/16, 1/32, 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
• Board Feet/Lumber Estimation
• Per Unit Material Cost
• Six Material Estimation Functions: Block, Brick, Column, Cone, Footing, Roof
• Custom Rafter Settings
• 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

• Size: 5.6 x 3.0 x 0.6" (142.2 x 76.2 x 15.2 mm)
• Product Weight (Including Case and Pocket Reference Guide) 4.5 oz. (127.5 g)
• Power: Two 1.5-Volt Alkaline Batteries (LR-44/A76)
• Battery Life: Approx. 1-2 years of actual usage
• Auto Shut-off: 8-12 min.
• Keypad: 42 keys, soft-touch silicone rubber
• Pocket Reference Guide: 36 pp.; 2.4 x 4" (60.9 x 101.6 mm)
• Case: Protective hard case; black
• Operating Temperature: 32-130 deg. F (0-55 deg. C)
• Display Type: LCD segment; 11 digits (7 normal, 4 fractions), with annunciator-legends
• Display Dimensions: 0.63 x 2.5" (16.0 x 63.5 mm)
• Accuracy: 10 digit internal accuracy