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...


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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. The most complete construction-math calculator on the market, the Construction Master Pro desktop calculator (model 44080) from Calculated Industries is perfect for completing layouts, bids, and estimates as well as helping to save time and money by helping you figure out the right amount of needed materials. It's ideal for or contractors, architects, builders, engineers, project managers, estimators, draftspersons, and more. Perfect for completed plans, layouts, bids, and estimates (view larger). You'll be able to work in and convert between all building dimensional formats--yards, feet-inch-fractions and metric--including area and volume, and it also comes with a full trigonometric functionality (sine, cosine, tangent, arcsine, arccosine and arctangent simplify complex design and construction-math). The Construction Master Pro includes a number of built-in time-saving functions, including calculations for risers, treads, stringer length, and incline angle; how many 4x8, 4x9 or 4x12 sheets are needed to cover an area; jack rafter results for regular and irregular pitch roof; determining number of on-center studs for an entered length; and right angles. It also offers advanced solutions for circles, arches, columns, cones, pillars, windows and post-holes arcs, circumference, and segments. Additional features include a large multi-position tilt display LCD, ability to custom define your preferences (such as fractional settings), a "paperless" tape that lets you review the previous 20 entries to double- check your totals, and accumulating memory with three additional memory storage locations. It's powered by a single 3-volt CR2032 lithium battery, and the Construction Master Pro has an auto shut-off feature that turns the calculator off after about 8 to 12 minutes of non-use. It measures 6.4 x 9 x 1.4 inches, weighs 10.8 ounces, and is backed by a one-year limited warranty. What's in the Box Calculated Industries 44080 Construction Master Pro desktop calculator; user guide; pocket reference guide, and battery. 44080 Construction Master Pro Desktop CalculatorAt a Glance: Work in and convert between all building dimensional formats Full trigonometric function to simplify construction math Desktop version with tilting display Powered by one CR2032 lithium battery Auto shut-off One-year limited warranty P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); 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. See more


  • SOLVE ALL YOUR DIMENSIONAL MATH quickly and accurately with the award-winning CM Pro-Desktop construction calculators 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 users guide, plus a pocket reference guide in Spanish, full-size keys, long-life battery and full one-year limited

Product Details:

  • Manufacturer: Calculated Industries
  • Part Number: 44080
  • Item Weight: 1.25 pounds
  • Product Dimensions: 9 x 7 x 2 inches
  • Item model number: 44080
  • Batteries: 1 CR2 batteries required. (included)
  • Is Discontinued By Manufacturer: No
  • Size: Pack of 1
  • Style: Desktop
  • Power Source: Battery
  • Voltage: 3 Volts
  • Item Package Quantity: 1
  • Display Style: LCD
  • Batteries Included?: Yes
  • Batteries Required?: Yes
  • Battery Cell Type: Lithium Manganese Dioxide
  • Warranty: Full 1-year limited warranty
  • Date First Available: January 1, 2008

Calculated Industries 44080 Construction Master Pro-Desktop Advanced Construction Math Feet-Inch-Fraction Calculator with Trig Tool for Architects, Estimators, Contractors, Builders and Remodelers

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