Advanced Construction-Math Calculator

The Construction Master Pro is an award-winning advanced feet-inch-fraction construction-math calculator with powerful built-in solutions perfect for completing layouts, plans, bids and estimates. Calculate circles, roofs, stairs, 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.

Construction 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
• Drywall - Siding and Panels
• Stairs - Riser Height and solve for Stairwell Opening
• Studs On-center
• Compound Miter Cuts
• Arched Rake-Walls

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+) - Plus three additional Memory Storage locations
• Paperless Tape: Review of last 20 entries; double-check totals
• Standard Calculations: works as a regular math calculator with +, -, +/-, ×, ÷, %, π, 1/x, x², and √
• Automatic Shut-Off saves battery life

Includes

• Rugged shock, dust and moisture-resistant Armadillo Gear protective case (Model #5022-4)
• Pocket Reference Guides in English and Spanish
• Two LR44 long-life batteries
• One-year limited warranty

Size:
5.7 x 3.0" x 0.65" (145 mm x 76 mm x 17 mm)

Power:
Two 1.5-volt LR-44/A76 long-life batteries

Display Type:
11 digits (7 normal, 4 fractions)

Display Dimensions:
0.625" x 2.5" (16 mm x 63.5 mm)

Accuracy:
12 digit internal accuracy