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Construction Master Pro Trig

  It helps you:

  • Work in and convert between any building dimension, including Metric
  • Trigonometric Function
  • Find Weight per Volume
  • Built-in Right-Angle solutions
  • Complete Stair Layouts
  • Roof, Rafter and Framing solutions
  • Circular calculations: Arcs, Circumference, Segments and More
  • New Features, Functions and Enhanced Solutions for 2005
  • Stairs - Set Riser Height and solve for Stairwell Opening
  • Studs - Find number On-center for an entered Length
  • Compound Miter Cuts
  • Arched Rake-Walls
  • Equal sided Polygons

Dedicated Keys and Functions Make It Easy-to-Use

  • Full Trigonometric Function
  • Sine, Cosine, Tangent, Arcsine, Arccosine and Arctangent simplify complex design and construction-math
Dimensional Math and Conversions

  • Work in and convert between all building dimensional formats: Yards, Feet-Inch-Fractions, Decimal Feet and Inches and Metric - including Area and Volume D:M:S to Decimal Degree conversions
  • 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 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 Miter 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
  • 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: Allows for review of last 20 entries; double-check totals Standard Calculations: Works as a math calculator with
  • Automatic Shut-Off saves battery life
  Product Spec Sheet
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Advanced Feet-Inch-Fraction Construction-Math Calculator with Full Trigonometric Function

The Construction Master Pro Trig Feet-Inch-Fraction calculator provides the building professional complete trigonometric function. This powerful and advanced construction-math calculator with features new built-in solutions and expanded preference selection. It allows you to easily determine precise angle measurements and solve the most complex design and construction-math problems. Perfect for estimating materials and costs. In the field or office it helps assure accuracy, save time and money.


  • Protective Hard Slide Cover Easy-to-follow User's Guides in English/Spanish Handy Pocket Reference Guides in English/Spanish Long-Life Batteries Full One-Year Limited Warranty
  • CD-ROM with English and Spanish "How-To" Video and User's Guides










Tech Specs:

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

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)

10 Digit Internal Accuracy