Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-Inch-Fraction Calculator for Professional Builders

Amazon Customer: I work in steel fabrication and this is a great tool for planning, designing and knowing how much material to buy. Easy to use and helps me daily.

United States on Dec 14, 2023

Monica: Bought for my husband. He is blow away at the reliability and accuracy of this. His projects take half the time now with this.

United States on Nov 07, 2023

Amazon Customer: This calculator is so easy to use! Makes my projects so much faster to accomplish! So glad I purchased this, it can calculate anything!

United States on Oct 02, 2023

Serious Consumer: The The calculator works nicely if you understand how to enter the information to arrive at your final result. I have to admit when I first used it it was a challenge but once I contacted the technical support team they explained everything easily so that I was up and going in no time. Nice construction calculator making my difficult job easier.

United States on Aug 18, 2023

JB: This makes construction math easy if you're a pro or DIY, tons of useful features. Calculating stairs is worth it alone. Cheaper than the app as the app is now subscription based - two years of the subscription and you'd have the physical calculator paid off. You never stop paying the subscription for the app.

Canada on Aug 16, 2023

GScott: 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.

United States on May 09, 2023

adrian: A must have for every carpenter!!

Germany on Sep 03, 2022

Jerzy: Calculation all roof pech and stair

United Kingdom on Jan 09, 2022

DONATO S.: La facilidad de hacer y calcular ángulos en la construcción. La uso para verificar ángulos y mediciones y cálculo de materiales en la construcción de una casa. Apenas empiezo a utilizarla, pero sin duda aún tiene muchas cualidades que conocer y utilizar. Su manual es de gran ayuda.

Mexico on Mar 24, 2021

Vânia S.: Perfect

Spain on Jan 25, 2021