---
product_id: 1144759
title: "4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters"
brand: "calculated industries"
price: "€ 109.90"
currency: EUR
in_stock: true
category: "Calculated Industries"
url: https://www.desertcart.at/products/1144759-4065-construction-master-pro-advanced-construction-math-feet-inch-fraction
store_origin: AT
region: Austria
---

# Advanced construction math solutions Effortless unit conversions Time-saving right angle functions 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters

**Brand:** calculated industries
**Price:** € 109.90
**Availability:** ✅ In Stock

## Summary

> 📏 Nail every measurement, save every dime — the pro’s secret weapon!

## Quick Answers

- **What is this?** 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters by calculated industries
- **How much does it cost?** € 109.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/1144759-4065-construction-master-pro-advanced-construction-math-feet-inch-fraction)

## Best For

- calculated industries enthusiasts

## Why This Product

- Trusted calculated industries brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged & Ready:** Comes with a tough Armadillo Gear case, pocket guide, long-life batteries, and a 1-year warranty for daily pro use.
- • **Right Angle Mastery:** Instantly calculate rafters, slopes, stairs, and arches to nail every angle perfectly.
- • **Precision Meets Speed:** Solve complex dimensional math instantly with award-winning built-in construction formulas.
- • **Waste Less, Save More:** Built-in material estimators prevent costly errors on roofing, drywall, lumber, and millwork.
- • **Seamless Unit Switching:** Convert effortlessly between feet-inch-fractions, decimal feet, yards, and metric units on the fly.

## Overview

The Calculated Industries 4065 Construction Master Pro is the industry-standard construction calculator trusted by contractors, estimators, and builders for over 30 years. It features advanced built-in math solutions tailored for feet-inch-fraction calculations, effortless unit conversions, and specialized right-angle functions. Designed to reduce material waste and increase accuracy, it comes complete with a rugged protective case, reference guide, batteries, and a 1-year warranty—making it an essential tool for professionals demanding precision and efficiency on every project.

## Description

The Construction Master is and has been the industry standard for carpenters and craftsmen for over 30 years. Its use is taught in apprenticeship and training programs at the high-school, college, union and industry level across our country and beyond. An entire generation of framers and stick-builders grew up using it and advising us on new capabilities they wanted built-in. Building materials and techniques have changed over the years but geometry and the need to work quickly and accurately with dimensions is as important and difficult as ever. Put the time-tested Construction Master Pro on your next project and you’ll be glad you did.

## Features

- ADVANCED CONSTRUCTION MATH SOLUTIONS: Solve all your dimensional math quickly and accurately with the award-winning CM Pro construction calculator's powerful built-in solutions for completing layouts, plans, bids, estimates and more, directly in the building units you prefer
- EFFORTLESS UNIT CONVERSION: Work in and convert between all common building dimension formats including feet-inch-fractions, decimal feet-inches, yards and metric, with area and volume calculations, plus weight-per-volume and D:M:S to decimal degree conversions
- TIME-SAVING RIGHT ANGLE FUNCTIONS: Built-in functions for right angles provide instant solutions for square-ups, rafters (common, hip, valley, jacks), rake-walls, slopes, angles and more, plus complete stair layout and advanced solutions for arcs, arches, circles, and columns
- PREVENTS COSTLY MATERIAL WASTE: Built-in solutions for roofing, drywall, studs, blocks, concrete footings and board-feet lumber estimating, plus compound miter functions help you avoid errors when working with crown molding and other pricey millwork
- COMES COMPLETE: Comes with a rugged Armadillo Gear protective case, pocket reference guide, two long-life batteries and a full one-year limited warranty for daily professional use
- SAFETY-COMPLIANT BATTERY DESIGN: Button-cell battery compartment is secured with a tool-required fastener to prevent unintended access and meet U.S. federal safety requirements (16 CFR Part 1263), remaining secured during normal use and handling

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0007Q3RGQ |
| Best Sellers Rank | #5,962 in Office Products ( See Top 100 in Office Products ) #30 in Scientific Calculators |
| Brand | Calculated Industries |
| Calculator Type | Construction/Building |
| Color | Silver |
| Customer Reviews | 4.8 4.8 out of 5 stars (4,900) |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Global Trade Identification Number | 00098584040659 |
| Item Dimensions L x W | 5.75"L x 3"W |
| Item Weight | 8.16 ounces |
| Manufacturer | Calculated Industries |
| Mfr Part Number | 4065 |
| Model Name | 4065 |
| Model Number | 4065 |
| Number of Batteries | 2 LR44 batteries required. (included) |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Screen Size | 2.6 inches |
| UPC | 796084327231 787718482709 702658630553 098584000295 767872160125 780320411143 098584040659 700580266321 733353104988 |
| Unit Count | 1 Count |
| Warranty Description | 1 year manufacturers |

## Product Details

- **Brand:** Calculated Industries
- **Calculator Type:** Construction/Building
- **Color:** Silver
- **Power Source:** Battery Powered
- **Screen Size:** 2.6 inches

## Images

![4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters - Image 1](https://m.media-amazon.com/images/I/71M5jQzqpsL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Looking for gift for roofer husband who just got licensed. Is this a good tool for a roofer?**
A: I got this for my husband and he tells me every time he uses it how much he loves it. It does everything that he needs. One of the best gifts ever. I use it a lot myself, so hope he will get me one soon.

**Q: I have a older version...maybe 5 yrs? Is this one more advanced?**
A: Thanks for your question.  There have been no significant changes to the Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator in the last 5 years other than the addition of the Armadillo Gear as standard.  If you have one that is no longer working, you can send it in for repair.

**Q: Does the CI 4065 pro delivered have an orange back or black back?**
A: the calculator it's self has a black back, i got mine with the armadillo gear cover and the main body including the back is orange but the flip cover face is a dark graykevin

**Q: Will it tell me the amount of concrete i need for a slab?**
A: Thanks for your question. The Calculated Industries Construction Master Pro Calculator will calculate cubic yards using the Length Width and Height keys. This is a great all around Construction Calculator, however if you are dealing primarily in concrete you might want to check out the Calculated Industries ConcreteCalc Pro as it has advanced rebar and column functionality. Here is the link: https://www.amazon.com/Calculated-Industries-ConcreteCalc-4225-Calculator/dp/B000VKD4B6/ref=sr_1_1?ie=UTF8&qid=1536678826&sr=8-1&keywords=concrete+calculator

## Frequently Bought Together

- Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters
- Aproca Hard Storage Travel Case, for Calculated Industries 4065 4080 Construction Master Pro Calculator (Case Only)
- Calculated Industries 2140 Construction Master Pro Workbook and Study Guide | 4 Comprehensive Sections | Site Development | Footings, Slabs, Walls | Framing | Finishing |Practice Problems, Answers

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-18*