Created for the construction / industrial professional. This powerful, yet simple program has all the features of StairCalc-Basic, plus it handles circular or spiral stairs – and straight-run stairs up to 500 steps and 200 landings!

Great for stairs constructed of wood, steel, or concrete.

Input precision to 64th’s of an inch.

Simple input in Feet-Inches format.

Handles fractions and decimals with ease.

Calculates number of risers and treads automatically.

At any step, instantly calculates:
• Headroom (if it is a concern)
• Horizontal distance from first step (straight-run calculator only).
• Elevation of that tread
• True length of the stair jack(s).

Calculates the angle of the stairs, both in degrees and in pitch (x:12).

Loaded with on-the-fly help to remind you of Code-Specific rules, such as maximum rise and run, minimum headroom, maximum distance between landings, and much more.

Includes a built-in Feet-Inches Calculator.

Includes a built-in Decimal to Fraction Converter and Table of Common Fractions.

Never again wrangle with complicated stairs calculations – or stairs that don’t fit. If you design or build stairs, this program is a must!