--- product_id: 1144759 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: "378.62 DT" currency: TND in_stock: true reviews_count: 13 category: "Calculated Industries" url: https://www.desertcart.tn/products/1144759-calculated-industries-4065-construction-master-pro-advanced-construction-math-feet store_origin: TN region: Tunisia --- # Built-in waste reduction for costly materials Works in feet-inch-fractions, decimal, yards & metric Instant right-angle & rafter calculations 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:** 378.62 DT **Availability:** ✅ In Stock ## Summary > 🔨 Calculate Like a Pro, Build Like a Boss ## 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?** 378.62 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/1144759-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 - • **Compact Powerhouse:** Lightweight, battery-powered with a clear 2.6-inch LCD screen—your portable math expert on every jobsite. - • **Cut Costs, Not Corners:** Built-in material estimators prevent waste on roofing, drywall, studs, and millwork—saving you money and headaches. - • **Master Every Measurement:** Seamlessly convert and calculate in all common building units—feet, inches, yards, and metric—without missing a beat. - • **Speed Up Complex Layouts:** Instantly solve right angles, rafters, slopes, and stair layouts with precision that keeps your projects on schedule. - • **Trusted Industry Standard:** Over 30 years of proven reliability, taught in top apprenticeship and trade programs nationwide. ## Overview The Calculated Industries 4065 Construction Master Pro is the go-to construction calculator for contractors, framers, and estimators, offering fast, accurate dimensional math in all common building units. With specialized functions for angles, rafters, stairs, and material estimating, it reduces costly errors and waste. Trusted for over 30 years and favored by professionals, this compact, battery-powered tool delivers 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. Review: Accurate, time-saving construction calculator - I’ve had this construction calculator for a while now and absolutely love it. I use it most often for roof pitch calculations and for confirming square, and it’s been consistently accurate. Once you get the hang of how it works, it’s quick, easy, and very efficient. It really saves time compared to doing everything manually or double-checking with other methods. One project where it really stood out was laying out a rake wall with studs at 16 inches on center. The calculations made it easy to get perfect saw cuts so everything nailed up cleanly and matched the pitch exactly. I would definitely recommend this calculator for any construction use. It’s a great tool that earns its place on the jobsite. Review: Great value - Nice item comes with hard case ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0007Q3RGQ | | Best Sellers Rank | #3,187 in Office Products ( See Top 100 in Office Products ) #7 in Scientific Calculators | | Brand | Calculated Industries | | Calculator Type | Construction/Building | | Color | Silver | | Customer Reviews | 4.8 4.8 out of 5 stars (4,831) | | Display Type | LCD | | Enclosure Material | Plastic | | Global Trade Identification Number | 00098584040659 | | Item Dimensions L x W | 5.75"L x 3"W | | Item Weight | 0.51 Pounds | | Manufacturer | Calculated Industries | | Mfr Part Number | 4065 | | Model Name | 4065 | | Model Number | 4065 | | Number of Batteries | 2 LR44 batteries required. (included) | | Power Source | Battery Powered | | Screen Size | 2.6 Inches | | UPC | 796084327231 787718482709 702658630553 098584000295 767872160125 780320411143 098584040659 700580266321 733353104988 | | Unit Count | 1.0 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 ![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 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Accurate, time-saving construction calculator *by K***N on February 3, 2026* I’ve had this construction calculator for a while now and absolutely love it. I use it most often for roof pitch calculations and for confirming square, and it’s been consistently accurate. Once you get the hang of how it works, it’s quick, easy, and very efficient. It really saves time compared to doing everything manually or double-checking with other methods. One project where it really stood out was laying out a rake wall with studs at 16 inches on center. The calculations made it easy to get perfect saw cuts so everything nailed up cleanly and matched the pitch exactly. I would definitely recommend this calculator for any construction use. It’s a great tool that earns its place on the jobsite. ### ⭐⭐⭐⭐⭐ Great value *by G***A on March 9, 2026* Nice item comes with hard case ### ⭐⭐⭐⭐⭐ Made in America *by J***S on August 30, 2025* A little pricey compared to others. Does everything you would expect. Works great and made in America. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/1144759-calculated-industries-4065-construction-master-pro-advanced-construction-math-feet](https://www.desertcart.tn/products/1144759-calculated-industries-4065-construction-master-pro-advanced-construction-math-feet) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-04-23*