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

Great tool for the trick for the job site

This calculator is great! I used the 4065 for about 13 years. I changed the batteries once and I used it everyday. But recently, one of the other trades on the job site ran it over with a grade all lift. So it was time for a new one. Found it on Amazon at a good price. Delivery was right on time.

I purchased as a gift for my son, an inspector with department of transportation. I use in my work as a construction project manager, and thoroughly appreciate it. Durable, too! I have dropped mine on site numerous times and still functions well. Seems unaffected by dust etc typical at job site.

I gave this to my son and he uses it daily in his work (lumber sales). Seems to like it. Recommended

Its a great tool

Thanks for the service

Good for school

I have used it several times. Have had one that doesnt have all these features for around 25 years and it still works great, purchased this one because its a good brand and has the features I needed

Takes time getting use to. I bought to build stairs a lot fast and easier

This calculator was a replacement for another much older one that would make it easy to measure in feet & inches, etc. It doesnt do the things I hoped it would do. Its OK for simple calculations plus so types of calculations I never need to do, but not fractions, etc. So, it didnt replace the old one.