---
product_id: 267822250
title: "Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters"
brand: "calculated industries"
price: "43 kr"
currency: NOK
in_stock: true
reviews_count: 5
category: "Calculated Industries"
url: https://www.desertcart.no/products/267822250-calculated-industries-4065-construction-master-pro-advanced-construction-math-feet
store_origin: NO
region: Norway
---

# Multi-format dimension conversions Instant right-angle & rafter calculations Rugged shock & moisture-resistant case Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters

**Brand:** calculated industries
**Price:** 43 kr
**Availability:** ✅ In Stock

## Summary

> 📐 Build smarter, faster, and flawless every time!

## Quick Answers

- **What is this?** Calculated Industries 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?** 43 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/267822250-calculated-industries-4065-construction-master-pro-advanced-construction-math-feet)

## 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

- • **Built for the Jobsite:** Durable Armadillo Gear case protects against shocks, dust, and moisture—ready for any environment.
- • **Cut Waste, Save Money:** Accurate material estimating for roofing, drywall, studs, and lumber prevents costly errors.
- • **Master Every Measurement:** Seamlessly convert and calculate feet-inch-fractions, decimal feet, yards, and metric units with precision.
- • **Speed Up Complex Layouts:** Built-in functions for rafters, slopes, stairs, and angles save you time on every project.
- • **Trusted by Pros for 30+ Years:** Industry-standard tool with a 4.8-star rating, backed by a one-year warranty and included reference guides.

## Overview

The Calculated Industries 4065 Construction Master Pro is a professional-grade construction calculator designed for contractors, estimators, and builders. It offers advanced built-in solutions for dimensional math, including multi-format conversions, right-angle calculations, and material estimating. Protected by a rugged, shock and moisture-resistant case, it’s a trusted tool with over 30 years of industry use, delivering accuracy 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-d Construction Master Pro on your next project and you’ll be glad you did. We guarantee it!

Review: great unit for work works great for tough sstuff like 1x1x1x1x1x1x1x1x - great unit for work
Review: A Must Have Carpenter Equipment - Very useful in framing works.

## Features

- 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
- LETS YOU EFFORTLESSLY WORK IN AND CONVERT between all common building dimension formats: feet-inch-fractions, decimal feet-inches, yards and metric -- including area and volume. Plus weight-per-volume and D:M:S to decimal degree conversions too
- TIME-SAVING BUILT-IN FUNCTIONS for right angles give you instant solutions for square-ups, rafters (hip, valley, jacks), rake-walls, slopes, angles and more. Plus complete stair layout, advanced solutions for arcs, arches, circles, columns and more
- PREVENTS COSTLY MATERIAL WASTE with 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
- INVALUABLE' TOOL PAYS FOR ITSELF DAILY by reducing headaches, saving time and preventing expensive material errors on all your projects, from the office to the field. Comes with a rugged shock, dust and moisture-resistant Armadillo Gear protective case, pocket reference guides in English and Spanish, two LR44 long-life batteries and a full one-year limited warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0007Q3RGQ |
| ASIN  | B0007Q3RGQ |
| Batteries  | 2 LR44 batteries required. (included) |
| Best Sellers Rank | #106,189 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #59 in Construction Protractors |
| Brand | Calculated Industries |
| Calculator Type | Construction/Building |
| Color | Silver |
| Compatible Devices | Calculator |
| Customer Reviews | 4.8 4.8 out of 5 stars (4,763) |
| Customer reviews | 4.8 4.8 out of 5 stars (4,763) |
| Date First Available  | 21 September 2023 |
| Display Type | Digital |
| Enclosure Material | Plastic |
| Global Trade Identification Number | 00098584040659 |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions L x W | 14.6L x 7.6W centimeters |
| Item Weight | 0.51 Pounds |
| Item model number  | 4065 |
| Manufacturer | Calculated Industries |
| 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 |
| Product Dimensions  | 14.61 x 7.62 x 1.52 cm; 231.33 g |
| Screen Size | 2.6 Inches |
| UPC | 796084327231 787718482709 702658630553 098584000295 767872160125 780320411143 098584040659 700580266321 733353104988 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Calculated Industries
- **Calculator Type:** Construction/Building
- **Colour:** Silver
- **Power source:** Battery
- **Screen size:** 2.6 Inches

## Images

![Calculated Industries 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)
![Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters - Image 2](https://m.media-amazon.com/images/I/71xGh4iaoZL.jpg)
![Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters - Image 3](https://m.media-amazon.com/images/I/71aOHXFQJqL.jpg)
![Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters - Image 4](https://m.media-amazon.com/images/I/71X5yPGquXL.jpg)
![Calculated Industries 4065 Construction Master Pro Advanced Construction Math Feet-inch-Fraction Calculator for Contractors, Estimators, Builders, Framers, Remodelers, Renovators and Carpenters - Image 5](https://m.media-amazon.com/images/I/61M0b8OGmbL.jpg)

## Available Options

This product comes in different **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

## Customer Reviews

### ⭐⭐⭐⭐⭐ great unit for work works great for tough sstuff like 1x1x1x1x1x1x1x1x
*by E***S on 2 February 2026*

great unit for work

### ⭐⭐⭐⭐⭐ A Must Have Carpenter Equipment
*by J***G on 23 July 2020*

Very useful in framing works.

### ⭐⭐⭐ Fondamentale per lavorare con il sistema imperiale.
*by E***A on 26 October 2017*

Un mio collega possiede il modello precedente di questa calcolatrice e, dopo aver provato la sua ed averne constatato l'enorme utilità, mi sono decisa ad aquistarla a mia volta. Il prezzo è forse un po' alto, ma la facilità con cui ora riesco a gestire conversioni, somme e computi metrici per offerte è impagabile. Inoltre, guardando il libretto di istruzioni, sto scoprendo tutta una serie di funzioni che costituiscono certamente un valore aggiunto. La confezione, al posto del guscio di plastica standard, includeva un bonus, ovvero la custodia protettiva "armadillo gear". Questo accessorio temo che in realtà abbia notevolmente influito sul prezzo di vendita - la stessa calcolatrice, infatti, se acquistata in un negozio fisico negli US ha un costo di gran lunga inferiore. Ma io non volevo aspettare di andare ad acquistarla direttamente e comunque l'idea di una cover protettiva mi sembrava un'ottima cosa per proteggere la calcolatriche da danni da caduta quando sono fuori ufficio. E questa copertura in gomma effettivamente protegge la calcolatrice da qualunque tipo di urto, peccato però che ne aumenti l'ingombro in maniera quasi eccessiva, rendendo impossibile di fatto il trasporto in tasca. Inoltre, la custodia è larga e raccoglie quindi ogni tipo di residuo e polvere; il gancio dello sportello, infine, rende difficile poterlo aprire e si deve sempre operare con due mani. Quindi, questo mi impedisce di utilizzarla per lo scopo per cui è stata acquistata - ovvero una gestione facilitata anche durante le fasi di lavorazione. Dato il costo, ho ovviamente cercato di acquistare la cover standard separatamente (ora devo rimuovere lo scudo protettivo quando sono in posti senza piani di appoggio confortevoli) per avere una protezione seppur minima proprio nelle occasioni che contano, ma senza fortuna. Non posso quindi dirmi completamente soddisfatta. L'oggetto in sé è ottimo con perfette funzionalità ed un funzionamente intuitivo, ma l'imposisiblità di fruirne come pianificato ne diminuisce l'utilità.

## 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 Norway*
*Store origin: NO*
*Last updated: 2026-09-16*