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Construction Master 5
Model 4050
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Price: $59.95 Add to Cart
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[+] Overview

Available at:

Available at Home Depot, Lowes and Menards

The Essential Tool for Building Professionals

With the Construction Master 5, you'll get easy-to-use fast, accurate construction-math solutions for plans, layouts and on-site construction. Enter the numbers, just as you would say them, and the answers appear in an instant. Calculate roofs, stairs, circles, and more. Works in and converts between feet-inches-fractions and decimals, including metric. Use it in the field or office to save time, reduce costs, prevent re-work and maximize profits.

For Contractors, Framers, Builders, Architects, Engineers and Tradespersons


[+] Details

Calculations and Dedicated Functions:

  • Complete stair calculations for risers, treads, stringer length, stairwell opening and incline angle
  • Built-in right-angle functions for square-ups, slopes and more
  • Area, volume and perimeter solutions
  • Rafter function solves for common rafters, regular and irregular hips, valleys and jacks
  • Circular and arc: areas, diameters, circumference
  • Advanced solutions for circles, arches, columns, cones, pillars, windows and post-holes
  • Find volumes for concrete driveways, columns and more
  • Arched rake-walls with on-center spacing in ascending or descending order
  • Quickly calculate the number of on-center studs for an entered length
  • Solve equal sided polygons, corner and bi-sect angles, side length, perimeter and area
  • Board feet lumber estimating
  • Easily solve unit costing and pricing

Dimensional Math and Conversions

  • Works in and converts between building dimensional units: Yards, Feet-Inch-Fractions, Decimal Feet-Inches and Metric - including Area and Volume
  • Find Weight per Volume

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 +, -, +/-, ×, ÷, %, π, 1/x, x2, and √.
  • Automatic Shut-Off saves battery life

Includes: Protective slide-on hard case, pocket reference guides in English and Spanish, one CR2016 long-life battery, one-year warranty


[+] Reviews
Overall Rating Full StarFull StarFull StarFull StarFull Star
4.86 out of 5 
User Reviews
GREAT PRODUCT 5 out of 5.0
User: , Office Manager of MORRIS INDUSTRIES, INC from Powhatan, VA
User Rating: ★ ★ ★ ★ ★
Have used this product for years and never any problems

Very elite product 5 out of 5.0
User: , Roofing carpenter from Ireland
User Rating: ★ ★ ★ ★ ★
This is my 2nd calculator and still have my first. I use it all the time for stair and roofing calculations. I find it so accurate all the time. I would be lost without it. It's a wonderful product.

concrete construction 5 out of 5.0
User: , concrete foreman of Samson from tyngsboro,ma
User Rating: ★ ★ ★ ★ ★
By far the best calculator I've ever owned

Great Product 5 out of 5.0
User: from Middleburg, PA
User Rating: ★ ★ ★ ★ ★
Had previously owned a Sears version, it died. so I bought this one great product.

4 out of 5.0
User: , Designer of Interstate Engineering from Jamestown ND
User Rating: ★ ★ ★ ★

Awesome Time Saver 5 out of 5.0
User: , Carpenter of PLS Carpentry from Ontario, Canada
User Rating: ★ ★ ★ ★ ★
I am a carpenter, and since I found this calculator I will never be without it. great product.

Construction Master V 5 out of 5.0
User: , Architect from Annapolis, MD
User Rating: ★ ★ ★ ★ ★
Have a "Construction Master" from about 1986, still works. Decided it was time to get a new one and am not disappointed. great unit. See you in another 20+ yrs.

4 out of 5.0
User: , Owner of Parr and Assoiates, LLC from Georgetown, SC
User Rating: ★ ★ ★ ★
I would like to see a button for square feet and meter like the old one.

Construction Master 5 5 out of 5.0
User: from Branchland, WV
User Rating: ★ ★ ★ ★ ★
Perfect A+

Great Product 5 out of 5.0
User: of Casablanca Design Group from Atlanta, GA
User Rating: ★ ★ ★ ★ ★
This the second one I have had and used for 11 years. great product!

PRODUCT REVIEW 5 out of 5.0
User: of JMC BUILDING CENTER from WAUTOMA, WI
User Rating: ★ ★ ★ ★ ★
YOUR PRODUCT IS A GREAT TIME SAVER.

Construction Master 5 5 out of 5.0
User: from Stockton, CA
User Rating: ★ ★ ★ ★ ★
Just what I need as a construction electrician doing layout

Best thing ever!! 5 out of 5.0
User: of MWS Inc. from Attleboro, MA
User Rating: ★ ★ ★ ★ ★
Const. Master 5 is the greatest calculator in the world. It takes so much of the work out of my job and it's so easy to use. The yellow color makes it really easy to find too.

Construction Master 5 out of 5.0
User: from Roanoke, Virginia
User Rating: ★ ★ ★ ★ ★
I have used your calculator for years, 15 years to be exact and I have been very satisfied. I owned your Construction Master IV calculator and it preformed every calc to the letter. I will never use another brand but your. You have met my expectations and I'm very happy with your product. Great Job and keep up the good work.

5 out of 5.0
User: of Industrial Constructors Managers, Inc. from Pueblo, CO
User Rating: ★ ★ ★ ★ ★

4 out of 5.0
User: of Sandra Kraft Designs from Weston, MA
User Rating: ★ ★ ★ ★
The thing I find annoying is having to hit Conv, M+ when I want to subtract something from memory. It's an extra step compared to the old Pocket Handyman II. Other than that, I think it's pretty good.

Not Just for Construction 5 out of 5.0
User: of Alstom Power from Claremore, OK
User Rating: ★ ★ ★ ★ ★
My wife loves this calculator so much that she has taken it away from me and is using it in her nursing classes. I may never see it again.

OUTSTANDING!!! 5 out of 5.0
User: from Starkville, MS
User Rating: ★ ★ ★ ★ ★
I have an older version of the calculator that has the exact same functions and i couldn't work without it. It is nothing short of a carpenter's dream tool!

Love it 5 out of 5.0
User: from Hawaii
User Rating: ★ ★ ★ ★ ★
No more rafter square and tables for me - Just cut em by the numbers. I never stack a roof without this tool. Precutting the hip is a breeze...

Handy 5 out of 5.0
User: from Maryland
User Rating: ★ ★ ★ ★ ★
Adding & subtracting fractional dimensions is fast & easy.

Glad to have 5 out of 5.0
User: from Omaha NE
User Rating: ★ ★ ★ ★ ★
Fast, easy.


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[+] Parts & Accessories
 Accessories
Armadillo Gear Hard Case - Orange and Gray Armadillo Gear Hard Case - Orange and Gray

Orange case with rubber base and hard plastic cover protects a calcula
Armadillo Gear Hard Case - Orange and Gray | Add to Cart
Armadillo Gear Hard Case - Yellow and Gray Armadillo Gear Hard Case - Yellow and Gray

Yellow case with rubber base and hard plastic cover protects a calcula
Armadillo Gear Hard Case - Yellow and Gray | Add to Cart
Armadillo Gear Soft Tool Belt Case - Orange and Black Armadillo Gear Soft Tool Belt Case - Orange and Black

Nylon Armadillo Gear® Tool Belt Case is large enough to hold both
Armadillo Gear Soft Tool Belt Case - Orange and Black | Add to Cart
Armadillo Gear Hard Case - Green and Black Armadillo Gear Hard Case - Green and Black

Green case with rubber base and hard plastic cover protects a calculat
Armadillo Gear Hard Case - Green and Black | Add to Cart
Armadillo Gear Soft Tool Belt Case - Lime Green Armadillo Gear Soft Tool Belt Case - Lime Green

High visibility green tool belt case large enough to hold and protect
Armadillo Gear Soft Tool Belt Case - Lime Green | Add to Cart
 Parts
CR2016 Battery CR2016 Battery

Calculator replacement battery.
CR2016 Battery | Add to Cart

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