---
product_id: 696227401
title: "Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers"
brand: "calculated industries"
price: "C$6531"
currency: NIO
in_stock: true
reviews_count: 13
category: "Calculated Industries"
url: https://www.desertcart.ni/products/696227401-calculated-industries-44080-construction-master-pro-desktop-advanced-construction-math
store_origin: NI
region: Nicaragua
---

# Time-saving built-in construction formulas Multi-format dimension conversions Full trig functions for precise angles Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers

**Brand:** calculated industries
**Price:** C$6531
**Availability:** ✅ In Stock

## Summary

> 📐 Elevate your build game with precision and speed—don’t get left behind!

## Quick Answers

- **What is this?** Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers by calculated industries
- **How much does it cost?** C$6531 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/696227401-calculated-industries-44080-construction-master-pro-desktop-advanced-construction-math)

## 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

- • **Large Tilt Display:** Easy-to-read multi-position LCD ensures you never miss a detail, whether in the office or on-site.
- • **Built-In Trig Power:** Access sine, cosine, tangent, and their inverses to solve complex angles instantly—perfect for architects and estimators.
- • **Save Time & Materials:** Advanced functions for rafters, stairs, roofing, and drywall reduce costly errors and material waste on every project.
- • **Master Every Measurement:** Effortlessly convert and calculate feet-inch-fractions, decimal feet, yards, and metric units with unmatched accuracy.
- • **Safety-First Battery Design:** Tool-secured battery compartment meets federal safety standards, keeping your workspace safe and compliant.

## Overview

The 44080 Construction Master Pro-Desktop is the industry-leading construction calculator designed for professionals who demand speed, accuracy, and versatility. Featuring full trigonometric functions, multi-format dimension conversions, and specialized construction formulas, it streamlines complex calculations for architects, contractors, and estimators. Its large tilt display and safety-compliant battery design make it ideal for both office and field use, helping you save time, reduce material waste, and avoid costly errors on every project.

## Description

Product Description The Construction Master 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. The Construction Master Pro Desktop has those features built in including full trig functions. The trigonometric calculations include sine, cosine, tangent, arcsine, arccosine and arctangent. 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 Desktop on your next project at the jobsite or in the office and you’ll be glad you did. Button-Cell Battery Safety Compliant Design -- This product uses a button-cell battery housed in a compartment secured with a tool-required fastener. The battery is not accessible during normal use without a tool, supporting alignment with applicable U.S. consumer product safety requirements for button-cell batteries. LEGAL: Construction Master and Calculated Industries are trademarks and registered trademarks of Calculated Industries, Inc. Copyright 2023 All rights reserved. From the Manufacturer The Construction Master Pro DT sets the industry standard. It is the most powerful and advanced construction-math calculator ever developed. With many new solutions and expanded preference selection, this desktop unit's extra large display and tilt head is easy-to-use in the field or office. Work in and convert between Feet-Inch-Fractions, Decimal Feet, Yards and Metric. Get fast solutions for right angles, rafters (common, hip valley and jack), rake-walls, stairs, weight/volume, materials conversions, circular solutions and complete trigonometric function. Perfect for completing layouts, bids and estimates--saves time, money, materials and frustration. With new and enhanced solutions for drywall, siding, panels. Find number of sheets for an area, stairs--riser limited and stairwell opening, studs. Find number on-center for an entered length, compound miter cuts, arched rake-walls, equal sided polygons.

Review: Quality, reliability, good product - It is has a good used
Review: Good for anyone who does a lot of fractional adding. - Great product I have used the small handheld models for over 20 years and this works just as good and easier to see the numbers.

## Features

- SOLVE ALL YOUR DIMENSIONAL MATH quickly and accurately with the award-winning CM Pro-Desktop construction calculator’s powerful built-in solutions for building; and full trig functions with sine, cosine, tangent, arcsine, arccosine and arctangent
- 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
- HELPS YOU PREVENT COSTLY MATERIAL WASTE with built-in solutions for roofing, drywall, studs, blocks, concrete footings and board-feet lumber estimating. Plus compound miter functions help avoid errors when working with crown molding and other millwork
- INVALUABLE' TOOL PAYS FOR ITSELF by reducing headaches, saving time and preventing expensive material errors on your projects, from the office to the field. Comes with a large digits on easy-to-see multi-position tilt display LCD, easy-to-follow user’s guide, plus a pocket reference guide in Spanish, full-size keys, long-life battery and full one-year limited
- REESE’S LAW COMPLIANT BATTERY DESIGN – Button-cell battery compartment is secured with a tool-required fastener to help prevent unintended access and align with current U.S. federal safety requirements (16 CFR Part 1263). Battery compartment remains secured during normal use, transport, and handling.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006HERO2 |
| Batteries | 1 CR2 batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Manganese Dioxide |
| Best Sellers Rank | #3,675 in Office Products ( See Top 100 in Office Products ) #56 in Basic Office Calculators |
| Color | Silver |
| Customer Reviews | 4.8 4.8 out of 5 stars (5,740) |
| Date First Available | January 1, 2008 |
| Display Style | LCD |
| Included Components | Includes easy-to-follow User's Guide, long-life battery, 1-year warranty |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.25 pounds |
| Item model number | 44080 |
| Manufacturer | Calculated Industries |
| Material | Metal |
| Part Number | 44080 |
| Pattern | Calculator |
| Power Source | Battery Powered |
| Product Dimensions | 9 x 6.4 x 1.4 inches |
| Size | Pack of 1 |
| Style | Desktop |
| Voltage | 3 Volts |
| Warranty Description | Full 1-year limited warranty |

## Product Details

- **Brand:** Calculated Industries
- **Calculator Type:** Engineering/Scientific
- **Color:** Silver
- **Number of Batteries:** 1 CR2 batteries required. (included)
- **Power Source:** Battery Powered

## Images

![Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers - Image 1](https://m.media-amazon.com/images/I/71c8xoUFJQL.jpg)

## Available Options

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

## Questions & Answers

**Q: I have a v3.0 how do I access the battery?**
A: Thanks for your question.  Turn the calculator over and see that there are four small screws.  Using a small screwdriver, remove the two screws under the hinge.  Then, using a blunt edge instrument such as a letter opener or butter knife, slide it between the top and bottom and pop the clips around both sides and the bottom.  You will be replacing with a CR-2032 battery.  Please feel free to call our Tech Support Team at 800-854-8075, Ext 6500 is you have any questions.

**Q: I see on the calculated industries web site that they are shipping the v3.1 model. Is this the same newest model or is it an older version?**
A: mine says Model 44080 v3.1...i assume this is the latest model.

**Q: viewing in sunlight a problem???**
A: No problems at all, this is the big version of the small one. This is more for office use. The smaller one is more for the filed.

**Q: Description says it does full metric but one of the reviews says it will not convert mm.  Can somebody confirm?**
A: It converts to mm (and cm and m), in linear, area or cubic. Look above the #9 key in photo.  The keystroke to convert a displayed value from another unit to mm is simply [Conv] 9
To directly enter a mm value, you hit value e.g., 123 [Conv] 9.
Hope that helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality, reliability, good product
*by G***Z on January 25, 2026*

It is has a good used

### ⭐⭐⭐⭐⭐ Good for anyone who does a lot of fractional adding.
*by H***Y on December 13, 2025*

Great product I have used the small handheld models for over 20 years and this works just as good and easier to see the numbers.

### ⭐⭐⭐⭐⭐ Great product for builders
*by L***. on December 14, 2025*

this is a great calculator for builders, but I recommended having a bigger display so you could see what has been entered . Measure twice cut once

## Frequently Bought Together

- Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers
- Calculated Industries 6025 Scale Master Pro Digital Plan Measure Take-off Tool | 72 Built-in US Imperial, Metric Scales | 6 Custom Scales for Out-of-Scale Plans | Dedicated Keys for Linear Measuring

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-04*