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. Its 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! Work in and convert between building dimensional formats: Yards, Feet-Inch-Fractions, Decimal Feet-Inches and Metric including Area and Volume. Find Weight per Volume. Complete Stair calculations for Risers, Treads, Stringer Length and Incline Angle. 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. Custom Rafter Function provides Common Rafters, Regular and Irregular Hips, Valleys and Jacks; instant Cutting Angles (Cheek, Level and Plumb). 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. Board Feet Lumber estimating. Accumulating Memory (M+) Plus three additional Memory Storage locations. Paperless Tape: Review of last 20 entries; double-check totals.