Construction Master Pro - Advanced-Math Calculator - 4065

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Overview
Advanced Feet-Inch-Fraction 
  Construction-Math Calculator
The Construction 
  Master Pro sets the industry standard for advanced construction-math calculators. 
  It provides powerful built-in solutions and expanded preference settings. It’s 
  easy to use in the field or office and perfect for completing plans, layouts, 
  bids and estimates – saves time, money, materials and frustration. Work 
  smarter, build better and improve your bottom line with the Construction Master 
  Pro!
Calculations:
Work in and convert 
  between building dimensions, including Metric
  Built-in Right-Angle solutions
  Areas, Volumes, Square-ups 
  Complete Stair Layouts
  Roof, Rafter and Framing solutions 
  Circle: Arcs, Circumference, Segments
  New Features, Functions and Enhanced Solutions:
Drywall – 
  Siding and Panels
  Stairs – Riser Height and solve for Stairwell Opening
  Studs On-center
  Compound Miter Cuts
  Arched Rake-Walls
  For Contractors, Estimators, Architects, Carpenters, Framers, Draftspersons, 
  Engineers, Builders, Tradespersons
Features
Dimensional Math 
  and Conversions
Work in and convert 
  between building dimensional formats: Yards, Feet-Inch-Fractions, Decimal Feet-Inches 
  and Metric – including Area and Volume 
  D:M:S to Decimal Degree conversions 
  Find Weight per Volume
  Built-in Time Saving Functions 
Complete Stair 
  calculations for Risers, Treads, Stringer Length and Incline Angle 
  Set Riser Height and solve for Stairwell Opening 
  Built-in Right-Angle Functions for Square-ups, Slopes and more 
  Area, Volume and Perimeter solutions with Length, Width and Height Keys 
  Drywall, Siding and Paneling Key calculates 4x8, 4x9 or 4x12 Sheets to cover 
  an Area 
  Roof Function finds Area, Bundles, Squares and 4x8 Sheathing for Flat or Pitched 
  Roofs 
  Custom Rafter Function provides Common Rafters, Regular and Irregular Hips, 
  Valleys and Jacks; instant Cutting Angles (Cheek, Level and Plumb) 
  Jack Rafter results for Regular and Irregular Pitch Roof. Find Rake-Wall Studs 
  with On-center spacing 
  Compound Miter – Store Crown Angle and Enter Wall Corner Angle to calculate 
  the Blade Tilt and Angle for Miters cuts 
  Advanced solutions for Circles, Arches, Columns, Cones, Pillars, Windows and 
  Post-holes 
  Arched Rake-Walls with On-center Spacing 
  Studs – Calculate the number of On-center Studs for an entered Length 
  
  Equal Sided Polygon – Calculate Corner and Bi-sect Angles, Side Length, 
  Perimeter and Area 
  Block and Footing solutions 
  Board Feet Lumber estimating 
  Additional Features 
User Preferences: 
  Set custom defined options such as Fractional settings for 1/2” to 1/64” 
  and Stair Headroom Height, Decimal Degrees and more 
  Exponential Notation: Enter and display exponential values 
  Backspace Key: Makes it easy to change just-entered values 
  Constant Operator: Simplifies repetitive calculations 
  Cost per Unit: Easily solve unit costing and pricing 
  Accumulating Memory (M+) – Plus three additional Memory Storage locations 
  
  Paperless Tape: Review of last 20 entries; double-check totals 
  Standard Calculations: works as a regular math calculator with +, -, +/-, x, 
  ÷, %, ?, 1/x, X2, and v 
  Automatic Shut-Off saves battery life
  Includes
Protective Hard 
  Slide Cover 
  Easy-to-follow User's Guide 
  Handy Pocket Reference Guide in English and Spanish 
  Long-Life Batteries 
  Full One-Year Limited Warranty 
  English and Spanish CD-ROM with “How To” Video and User’s 
  Guide
Tech Specs
Size:
  5.6” x 3.0” x 0.6” (142.8mm x 76.2mm x 15.9mm)
Product Weight:
  4.5 oz. (127.5 gm)
  Includes Case and Pocket Reference Guide
Power:
  Two 3-volt (LR-44/A76) Long-life Batteries
Display Type:
  11 Digits (7 normal, 4 Fractions) with Full Annunciators
Display Dimensions:
  0.625” x 2.5” (15.88 mm x 63.5 mm)
Accuracy:
  10 Digit Internal Accuracy