1. What is a Staircase Length Calculator?

Definition: This calculator estimates the total horizontal length of a staircase based on the run per step, number of steps, and landing length.

Purpose: It helps architects, builders, and homeowners determine the space required for a staircase installation.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( L_t \) — Total length (feet)
• \( R \) — Run per step (feet)
• \( N \) — Number of steps (dimensionless)
• \( L_l \) — Landing length (feet)

Explanation: The run per step multiplied by the number of steps gives the total run, then the landing length is added to get the complete horizontal length.

3. Importance of Staircase Length Calculation

Details: Accurate length calculation ensures proper space planning, code compliance, and safe staircase design.

4. Using the Calculator

Tips: Enter the run per step (typically 10-11 inches), number of steps, and landing length (if any). All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical run per step?
A: Most building codes recommend 10-11 inches (0.83-0.92 feet) per step for comfortable climbing.

Q2: How do I determine the number of steps?
A: Divide total rise by desired riser height (typically 7-7.75 inches).

Q3: When is a landing required?
A: Building codes typically require landings after every 12 feet of vertical rise or when the staircase changes direction.

Q4: Does this calculate the actual footprint?
A: This calculates horizontal length only - you'll need to consider width separately for total area.

Q5: How do I convert inches to feet?
A: Divide inches by 12 (e.g., 10 inches = 0.83 feet).