For Use By Contractors, Estimators, Builders, Framers, Remodelers, Renovators, Product 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. Amazon.com The construction master pro (model 4065) from Calculated Industries sets the industry standard for advanced construction-math calculators. Offering powerful built-in solutions and expanded preference settings, it's 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, estimators, architects, builders, framers, engineers, concrete/foundation contractors, draftspersons, and more. Ideal for completing layouts, bids, and estimates (view larger). Quick, Accurate Solutions in the Field You'll be able to work in and convert between all building dimensional formats--yards, feet-inch-fractions and metric--including area and volume. 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 4 by 8, 4 by 9 or 4 by 12 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. Handheld Convenience The construction master pro also includes the 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 two 1.5-volt batteries (LR-44/A76), 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. The 11-digit display measures 2.5 inches by .625 inches. Overall, the calculator measures 5.6 inches by 3 inches by .6 inches, and weighs 4.5 ounces. It's backed by a one-year limited warranty. What's in the Box One Calculated Industries 4065 construction master pro calculator, Armadillo Gear protective cover, pocket reference guide in English and Spanish, and batteries. 4065 Construction Master Pro Calculator At a Glance: Work in and convert between all building dimensional formats Perfect for completing layouts, plans, bids, and estimates Large 11-digit display Powered by two LR-44/A76 batteries One-year limited warranty Product 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 Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. 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