Calculated Industries Construction Master Pro Trig 4080 Calculator

Product Code: ES21
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Product Information and Details

The Construction Master Pro Trig 4080 Feet-Inch-Fraction Calculator will simplify the most complex problems. It's design featuring a protective hard case, helps get the job done right the first time. From design and engineering to estimating and bidding, this easy-to-use tool can help solve any construction-math problem quickly, simply and accurately.


  • Calculator
  • 2 LR-44 batteries
  • Pocket reference guide
  • Armadillo Gear hard case


  • Full Trigonometric Functions, Sine, Cosine, Tangent, Arc-Sine, Arc-Cosine and Arc-Tangent simplify complex design and construction math
  • Precise Angles Down to Degrees, Minutes and Seconds.
  • Rafters and Right Angles, Custom Pitch, Rise, Run, Diagonal, and Hip/Valley and Jack keys now instantly find lengths for: Common Rafters, Regular(45°) and Irregular(non-45°) Hip/Valley.
  • Expanded Jack Rafter Functions.
  • Enhanced Stair Solutions, Everything you need to layout your next stairway with confidence: Risers, Treads, Stringer Length, Incline Angle and more.
  • Backspace Key.
  • Three Built-in Memories.
  • Expanded Circular Solutions, Complete built-in solutions for Circumference, Area, Arcs, Segments, Chords, Radius, Segment Heights.
  • Full-Size User's Guide.
  • Exponential Notation Function.
  • User-Set Preferences, Allows permanent setting of many user-defined options.
  • Custom-Set Fractions.
  • Board Feet Lumber Estimating.
  • Fast Per-Unit Cost Solutions.
  • Weight-per-Volume Conversions.
  • "Paperless" Tape, Quickly double-check your totals by instantly reviewing your last 20 entries.
  • More Time-Saving Features.


  • One year manufacturer's limited warranty


Condition: New
  • Usually ships off dock within:Same Day
List Price $89.95
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Customer Reviews

Average Rating

I am on my second Construction Master Pro Trig 4080 Calculator in 15 years. It is such a great calculator for both estimating and surveying that when I changed jobs from industry to teaching at a university in a construction management program that I recommend it to all my students.