---
product_id: 1147660
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: "S$99"
currency: SGD
in_stock: true
category: "Tools"
url: https://www.desertcart.sg/products/1147660-calculated-industries-4065-construction-master-pro-advanced-construction-math-feet
store_origin: SG
region: Singapore
---

# Precision feet-inch-fraction math Long-lasting dual lithium batteries Advanced building formulas & volume 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:** S$99
**Availability:** ✅ In Stock

## Summary

> 📐 Build smarter, not harder — the pro’s secret weapon!

## 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?** S$99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/1147660-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 Builders:** Preloaded with essential construction formulas for area, volume, and more—save time on every project.
- • **Compact Powerhouse:** Lightweight (3.2 oz) and sleek design ensures you stay efficient without the bulk.
- • **Durable & Portable:** Rugged aluminum front with a protective slide cover fits perfectly in your toolkit or pocket.
- • **Ready Out of the Box:** Includes 2 lithium batteries and quick reference guides so you can start calculating immediately.
- • **Master Every Measurement:** Effortlessly convert and calculate feet, inches, and fractions with pinpoint accuracy.

## Overview

The Calculated Industries 4065 Construction Master Pro is a precision handheld calculator tailored for construction pros. It performs complex feet-inch-fraction math and common building formulas, supports metric and English units, and comes equipped with durable materials and dual lithium batteries for reliable, on-site use. Compact and rugged, it’s designed to streamline estimations and measurements for contractors, framers, and renovators alike.

## Description

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

## Features

- Construction math calculator designed for construction professionals
- Performs common building formulas; area and volume calculations; works in various units, English/metric
- Plastic back, aluminum front, soft rubbed buttons
- Includes 2 3-volt lithium batteries, user guide, quick reference guide, protective slide cover
- 5.6 by 3 by 1/2 inches; display dimensions 0.86 by 2-1/2 inches; 3.2 ounces; 1-year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0007Q3RGQ |
| Batteries | 2 LR44 batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #3,350 in Office Products ( See Top 100 in Office Products ) #9 in Scientific Calculators |
| Color | Silver |
| Customer Reviews | 4.8 4.8 out of 5 stars (5,757) |
| Date First Available | July 14, 2008 |
| Display Style | LCD |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 8.2 ounces |
| Item model number | 4065 |
| Manufacturer | Calculated Industries |
| Material | Plastic |
| Measurement System | metric |
| National Stock Number | 4820-01-299-7444 |
| Part Number | 4065 |
| Pattern | Calculator |
| Power Source | Battery Powered |
| Product Dimensions | 5.75 x 3 x 0.6 inches |
| Style | Handheld |
| Voltage | 1.5 Volts |
| 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

![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)

## 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 Singapore*
*Store origin: SG*
*Last updated: 2026-03-04*