Overview

Advanced feet-inch-fraction construction math calculator.

The Construction Master Pro sets the industry standard for advanced construction-math calculators. It provides powerful built-in solutions and expanded preference settings. It’s easy to use in the field or office and perfect for completing plans, layouts, bids and estimates – saves time, money, materials and frustration. Work smarter, build better and improve your bottom line with the Construction Master Pro!

Calculations:
• Work in and convert between building dimensions, including metric
• Built-in right-angle solutions
• Areas, volumes, square-ups
• Complete stair layouts
• Roof, rafter and framing solutions
• Circle: arcs, circumference, segments

New Features, Functions and Enhanced Solutions:
• Drywall - siding and panels
• Stairs - riser height and solve for stairwell opening
• Studs on-center
• Compound miter cuts
• Arched rake-walls

For contractors, estimators, architects, carpenters, framers, draftspersons, engineers, builders, tradespersons

Features

Dimensional Math and Conversions
• Work in and convert between building dimensional formats: yards, feet-inch-fractions, decimal feet-inches and metric - including area and volume
• D:M:S to decimal degree conversions
• Find weight per volume

Built-in Time Saving Functions
• Complete stair calculations for risers, treads, stringer length and incline angle
• Set riser height and solve for stairwell opening
• Built-in right-angle functions for square-ups, slopes and more
• Area, volume and perimeter solutions with length, width and height keys
• Drywall, siding and paneling key calculates 4x8, 4x9 or 4x12 sheets to cover an area
• Roof function finds area, bundles, squares and 4x8 sheathing for flat or pitched roofs
• Custom rafter function provides common rafters, regular and irregular hips, valleys and jacks; instant cutting angles (cheek, level and plumb)
• Jack rafter results for regular and irregular pitch roof. Find rake-wall studs with on-center spacing
• Compound miter - store crown angle and enter wall corner angle to calculate the blade tilt and angle for miters cuts
• Advanced solutions for circles, arches, columns, cones, pillars, windows and post-holes
• Arched rake-walls with on-center spacing
• Studs - calculate the number of on-center studs for an entered length
• Equal sided polygon - calculate corner and bi-sect angles, side length, perimeter and area
• Block and footing solutions
• Board feet lumber estimating

Additional Features
• User Preferences: Set custom defined options such as fractional settings for 1/2" to 1/64" and stair headroom height, decimal degrees and more
• Exponential notation: enter and display exponential values
• Backspace key: makes it easy to change just-entered values
• Constant operator: simplifies repetitive calculations
• Cost per unit: easily solve unit costing and pricing
• Accumulating memory (M+): three additional memory storage locations
• Paperless tape: review of last 20 entries; double-check totals
• Standard calculations: works as a regular math calculator with +, -, +/-, x, ÷, %, Π, 1/x, X2, and √
• Automatic shut-off saves battery life

Includes
• Protective hard slide cover
• Easy-to-follow user's guide
• Handy pocket reference guide in English and Spanish
• Long-life batteries
• Full one-year Limited Warranty
• English and Spanish CD-ROM with "How To" Video and User's Guide

Technical Specifications

Size: 5.6" x 3.0" x 0.6" (142.8mm x 76.2mm x 15.9mm)

Product weight: 4.5 oz. (127.5 gm)
Includes case and pocket reference guide.

Power: Two 3-volt (LR-44/A76) long-life batteries

Display type: 11 digits (7 normal, 4 fractions) with full annunciators

Display dimensions: 0.625" x 2.5" (15.88 mm x 63.5 mm)

Accuracy: 10 digit internal accuracy