🪜 STAIRCASE TYPES – DESIGN & DIMENSIONS

🏗️ Main Components

🔹 Tread – Horizontal stepping surface.
🔹 Riser – Vertical height between steps.
🔹 Flight – Continuous series of steps.
🔹 Landing – Level platform between flights.
🔹 Handrail & Baluster – Provide support and protection.
🔹 Waist Slab – Supports reinforced concrete steps.

📐 6 Common Staircase Types

1️⃣ Straight: One continuous flight.
2️⃣ L-Shaped: Turns 90° at a landing.
3️⃣ U-Shaped: Turns 180° between flights.
4️⃣ Spiral: Steps rotate around a central column.
5️⃣ Cantilevered: Steps project from a supporting structure.
6️⃣ Curved: Follows a curved architectural path.

📏 Illustrative Dimensions

• Floor Height: 2.80 m
• Stair Width: 1.20 m
• Landing: 1.20 m
• Spiral Diameter: 1.80 m

✅ Design Tips

• Maintain uniform tread and riser dimensions.
• Provide adequate headroom, landings, handrails, and guards.
• Ensure proper structural support and reinforcement.
• Follow applicable building codes.

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