Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters

I’ve had this construction calculator for a while now and absolutely love it. I use it most often for roof pitch calculations and for confirming square, and it’s been consistently accurate. Once you get the hang of how it works, it’s quick, easy, and very efficient. It really saves time compared to doing everything manually or double-checking with other methods. One project where it really stood out was laying out a rake wall with studs at 16 inches on center. The calculations made it easy to get perfect saw cuts so everything nailed up cleanly and matched the pitch exactly. I would definitely recommend this calculator for any construction use. It’s a great tool that earns its place on the jobsite.

Nice item comes with hard case

A little pricey compared to others. Does everything you would expect. Works great and made in America.

this is a great calculator for builders, but I recommended having a bigger display so you could see what has been entered . Measure twice cut once

I bought a Construction Master III in 1993 when I built my first house. At the time, I was a general contractor. It's been decades since I have done construction professionally. But I have used the calculator periodically through the years for various personal construction projects. I bought the 4065 Construction Master Pro thinking there must be some substantial improvements over the last 30 years. It does have a few new features, but most of those are accessed using a combination of keystrokes which are difficult to remember. The markings for the alternate functions of the keys are very tiny and difficult to read. The manual, which is often needed to determine the keystrokes needed for a particular function, is difficult to get to. You have to pry the calculator out of its armor case to get the the manual tucked into the back. On my original calculator, the manual is tucked into a flap on the case, and is readily available for reference. So, I returned the 4065, and will continue to use my 30 year old calculator. In general though, these calculators are very useful.

Years ago when I was building and cutting roofs I relied heavily on Marshall Gross and a TI-35 calculator(IYKYK) and was able to calculate anything I encountered. Fast forward 25 years where work and life have taken me other places and I was no longer using Trig and geometry on a regular basis, my ability to calculate has diminished. It would probably be fairly easy to go back and brush up with the help of Roof Framing, but I decided to come into the light and try a dedicated construction calculator for a few planned fanciful construction projects. Enter the Construction Master Pro. I haven't had it long enough to attest to it's durability but I'm confident that the Construction Master reputation for quality is deserved. Fortunately, mine also came with an Armadillo Case, which seems like it will be great for protecting the calculator. I took it out of the box and started performing calculations with the included quick start guide, which stores very conveniently in the back side of the calculator. Keystroke sequences are not always intuitive if you are accustomed to using a scientific calculator for these calcs, but it seems that with a little more practice they will became second nature, and there are short cuts built in to the process for more advanced calculations. I'm looking forward to mastering this calculator.....I definitely recommend it's purchase.

My partner had the app but it wasn’t working on his new phone. He was so happy when I gave this to him. Uses it every day. It has a lot of different conversions and is easy to use.

Im a construction inspector and this thing saved my head