| Number of Steps | hesaplanacak |
|---|---|
| Actual Riser Height | hesaplanacak |
| Stringer Length | hesaplanacak |
| Total Horizontal Run | hesaplanacak |
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Stair Design Fundamentals
A safe and comfortable staircase requires careful calculation of three key dimensions: rise (vertical height of each step), run (horizontal depth of each tread), and the total number of steps. Building codes specify acceptable ranges for safety.
Key Stair Dimensions
- Total Rise: Vertical distance from floor to floor
- Riser Height: Height of each individual step (typically 150–200 mm)
- Tread Depth: Horizontal depth of each step (typically 250–300 mm)
- Number of Steps: Total Rise / Riser Height (round to nearest whole number)
Building Code Guidelines (Most Jurisdictions)
| Dimension | Residential | Commercial |
|---|---|---|
| Maximum riser height | 220 mm | 180 mm |
| Minimum tread depth | 220 mm | 280 mm |
| Minimum stair width | 860 mm | 1,000 mm |
| Handrail height | 900–1,000 mm | 1,000 mm |
The Comfort Formula
A well-designed staircase follows: 2 x Rise + Run = 600–650 mm
Example: 175 mm riser + 300 mm tread = (2 x 175) + 300 = 650 mm — perfect comfort.
Example Calculation
Floor-to-floor height: 2,800 mm
Target riser: 175 mm
Number of steps: 2,800 / 175 = 16 steps
Actual riser: 2,800 / 16 = 175 mm exactly
Tread (for comfort): 650 - (2 x 175) = 300 mm
How to Use This Calculator
Using our calculator is simple: enter the required values into the input fields and click the calculate button. Results are displayed instantly on screen. You can adjust the values and recalculate to compare different scenarios and find the best option for your situation.
Frequently Asked Questions
| Question | Answer |
|---|---|
| How accurate are the results? | We use standard formulas and up-to-date 2025 rates. Individual circumstances may vary slightly. |
| Is this calculator free? | Yes, completely free and no registration required. |
| What should I do for exact figures? | For precise information, consult a relevant professional or official authority. |
| Does it work on mobile devices? | Yes, it works seamlessly on all devices and screen sizes. |
Important Notes
This calculator is provided for informational purposes only. For legal, financial, or medical decisions, always seek advice from qualified professionals. Calculation results do not constitute official documents. Legislative changes may affect results; please visit the relevant official website for the most up-to-date information. Our calculators are regularly updated to reflect current regulations and rates.
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