Construction Master 5

Calculated Industries CI4050

Availability: In stock


Quick Overview

The Construction Master 5 is the essential tool for serious building professionals. Easy-to-use in the field or office it meets the need for fast, accurate construction- math solutions. Enter the numbers, just as you would say them and the solutions appear in an instant – they’re built-in to your Construction Master 5. Ideal for plans, and layouts. Reduce the risk of expensive errors when estimating costs and materials. Save time, money and frustration!


-Linear, Area and Volume solutions: convert dimensions, including Metric
-Rafter, Roof and Framing solutions: Hip/Valley, Jacks and Rake-Walls
-Stair solutions: Risers, Treads, Stringer, Incline
-Built-in Right-Angle solutions: Automatic Square-ups
-Circular and Arc: Areas, Diameters, Circumference
-Board Feet
-Weight per Volume
For Contractors, Builders, Architects, Engineers and Tradespersons

Construction Master 5

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Dimensional Math and Conversions
    Works in and converts between building dimensional formats: Yards, Feet-Inch-Fractions, Decimal Feet-Inches and Metric – including Area and Volume
    Find Weight per Volume

Dedicated Functions
    Stair calculations for Risers, Treads, Stringer Length and Incline Angle; displays Run and Rise
    Custom Rafter Function provides Common Rafters, Regular and Irregular Hips, Valleys and Jacks. Jack Rafter feature provides complete solutions for Regular and Irregular Pitch roofs. Displays On-center spacing.
    Solutions for Circles, Arcs, Columns, Pillars, Windows, Post-holes and more
    Rake-Wall function determines Stud Length for any On-center Spacing, in Ascending or Descending order
    Board Feet Lumber estimating

Added Features
    User Preferences: Set custom defined options such as Fractional settings for 1/2, 1/4, 1/8, 1/16, 1/32, and 1/64
    Backspace Key: Makes it easy to change just-entered values
    Cost per Unit: Easily solve unit costing and pricing
    "Paperless" Tape: Allows for review of last 20 entries; double- check totals
    Standard Calculations: Works as a math calculator with +, -, +/-, x, ÷, %, pi, 1/x, X2, and √.
    Automatic Shut-Off saves battery life

    Protective Slide Cover
    Easy-to-follow Pocket User’s Guides in English and Spanish
    Long-Life Battery
    Full One-Year Limited Warranty
    English and Spanish CD-ROM with “How-To” Video and User’s Guide

Tech Specs
5.7” x 3.0” x 0.65” (145mm x 76mm x 17mm)

Product Weight:
4.15 oz. (117.7 gm)
Includes Case and Pocket Reference Guide

One 3-volt (CR-2016) Long-life Battery

Display Type:
LCD: 11 Digits (7 normal, 4 Fractions) with Full Annunciators

Display Dimensions:
0.73” x 2.56” (19 mm x 65 mm)

10 Digit Internal Accuracy

Additional Information

ManufacturerCalculated Industries

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