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Unlike a regular calculator, the Construction Master IV has intuitively labeled "construction keys" and a format that is so simple, even the novice user will find it easy to solve hundreds of problems directly in feet, inches and fractions: More New Solutions For Rafters and Right Angles! Custom Pitch, Rise, Run, Diagonal, and Hip/Valley and Jack keys now instantly find lengths for: Common Rafters, Regular 45 and Irregular (non-45) Hip/Valley & Jack Rafters. Stores Pitch in inchesand degrees.NEW! "Paperless" Tape! For reviewing past 20 entries.NEW! Weight-per-Volume (lbs, tons, kg) key! Lets you convert between weights and find weights of any material (i.e., tons per cubic yard, etc.).NEW! Rake-Wall key! Gives you each stud length for any pitch or o.c. spacing.Improved Stair key! Instantly finds number of Risers, Treads, Riser height, Tread width, any Overage or Underage. Also gives Stringer Length and Incline Angle.Instant Circumference,Circle Area & Arc Lengths! One button solves post holes, columns, pillars, arches and more.Works in Any Format! Right in Feet-Inch-Fractions, Decimal Feet, Inches & Fractions, Decimal Inches, Yards, Meters, Centimeters, Millimeters, Board Feet - including Square and Cubic formats of each.Board Feet and Unit Price keys! Help estimate material amounts and costs instantly.NEW! "Smart" Fraction Setting! Saves keystrokes by entering preset denominators for you.Repeat Function for Operators ( +, -, x, )
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