The Construction Master Pro is an award-winning advanced feet-inch-fraction construction-math calculator with powerful built-in solutions ideal 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.

• 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)
• Advanced solutions for circles, arches, columns, cones, pillars, windows and post-holes
• Arched rake-walls with on-center spacing
• Calculate corner and bi-sect angles, side length, perimeter and area

• https://assets.unilogcorp.com/187/ITEM/DOC/Calculated_Industries_100066781_Specification_Sheet.pdf Specification Sheet