Calculated Industries 4080 Construction Master Pro: Advanced Trigonometry and Construction Math Feet-Inch-Fraction Calculator

Rene Munoz: Great product. Got it to take my GC license.

United States on Dec 18, 2023

Tanya Algee: When I ordered this unit I didn't realize it was intended for bridge and skyscraper builders! After I got it and tried to use it for the first time I had to stop my project and go online to learn to use it properly for what I needed to do. That took a couple of head scratching hours but finally I got it. Not the fault of the calculator though, thus the 5 stars overall. There is a more basic unit that would have been just fine for my needs (building a two story workshop) and I didn't realize it. This is the TRIGONOMETRY version and like I said if you are planning on building the Golden Gate Bridge or Taj Mahol buy away. Otherwise maybe look for the simpler unit. It did help a lot with the stair risers, rafters, and trusses though but I guess in most areas they won't let you build your own trusses anymore.

United States on Nov 28, 2023

Brian A. Scherrer: Third one iv bought over 20 years

United States on Nov 08, 2023

Stoney Meyerhoeffer: Product is great, but the workbook should be bundled with the 4065 calc rather than the 4080. I was disappointed to find a good portion of the workbook undoable because the 4080 replaces the Length, Width, and Height buttons with the Trig (sin, cos, tan) buttons. The bundle really needs to be changed. I had to order the 4065 and now have to return this 4080.

United States on Oct 29, 2023

John Hattie: Over the years, I have had two previous units. Makes life so much easier in the home design industry

Canada on Oct 25, 2023

William: Para mí es una herramienta nueva la estoy aprendiendo a utilizar se que me va a servir mucho porque yo trabajo la carpintería en la construcción tengo poco tiempo aquí en USA.

United States on Aug 11, 2023

andy: It does take a bit to get used to but once you figure it out it’s awesome, great for layout measurements

Canada on Jan 07, 2022

carlos casillas: Es un excelente producto.
Lo utilizo para detallar estructura de acero.

Mexico on Nov 03, 2020

m.j.mynard: Great product everything you need to do a great job. Thanks calculated Industries.

United Kingdom on Jul 21, 2017

Jim Robson: This calculator helps enormously with quick calculations and can be used with imperial or metric measurements.

United Kingdom on May 25, 2016