The Essential Tool for Building ProfessionalsWith the Construction Master 5, you'll get easy-to-use fast, accurate construction-math solutions for plans, layouts and on-site construction. Enter the numbers, just as you would say them, and the answers appear in an instant. Calculate roofs, stairs, circles, and more. Works in and converts between feet-inches-fractions and decimals, including metric. Use it in the field or office to save time, reduce costs, prevent re-work and maximize profits.For Contractors, Framers, Builders, Architects, Engineers and TradespersonsCalculations and Dedicated Functions: Complete stair calculations for risers, treads, stringer length, stairwell opening and incline angle Built-in right-angle functions for square-ups, slopes and more Area, volume and perimeter solutions Rafter function solves for common rafters, regular and irregular hips, valleys and jacks Circular and arc: areas, diameters, circumference Advanced solutions for circles, arches, columns, cones, pillars, windows and post-holes Find volumes for concrete driveways, columns and more Arched rake-walls with on-center spacing in ascending or descending order Quickly calculate the number of on-center studs for an entered length Solve equal sided polygons, corner and bi-sect angles, side length, perimeter and area Board feet lumber estimating Easily solve unit costing and pricing Dimensional Math and Conversions Works in and converts between building dimensional units: Yards, Feet-Inch-Fractions, Decimal Feet-Inches and Metric - including Area and Volume Find Weight per Volume Added Features User Preferences: Set custom defined options such as Fractional settings for 1/2, 1/4, 1/8, 1/16, 1/32, and 1/64 Backspace Key: Makes it easy to change just-entered values Cost per Unit: Easily solve unit costing and pricing "Paperless" Tape: Allows for review of last 20 entries; double- check totals Standard Calculations: Works as a math calculator with +, -, +/-, ×, ÷, %, π, 1/x, x2, and √. Automatic Shut-Off saves battery life Includes: Protective slide-on hard case, pocket reference guides in English and Spanish, one CR2016 long-life battery, one-year warrantyTech SpecsSize: 5.7" x 3.0" x 0.65" (145mm x 76mm x 17mm)Product Weight: 7 oz. (200 grams), includes case and Pocket Reference GuidePower: One 3-volt CR2016 long-life batteryDisplay Type: LCD: 11 digits, 7 normal, 4 fractionsDisplay Dimensions: 0.73" x 2.56" (19 mm x 65 mm)Accuracy: 10 digit internal accuracy
