👉Staircase Design with Intermediate Platform

🏛This engineering infographic illustrates a two-flight reinforced-concrete staircase with an intermediate platform, including key dimensions, step details, headroom, railing, and construction considerations.

🔆Key Design Details

▶️Total floor-to-floor rise: 2.30 m
▶️Intermediate platform level: 1.15 m
▶️Rise per flight: 1.15 m
▶️Stair width: 1.30 m
▶️Tread/going: 280–300 mm
▶️Riser height: 150–170 mm
▶️Intermediate platform depth: Minimum 2.30 m
▶️Headroom: Minimum 2.30 m
▶️Glass tread thickness: 10–12 mm (as shown in the illustration)
▶️RCC waist slab: Approximately 120–150 mm (illustrative value)
▶️Nosing: 20–25 mm
▶️Railing height: 1.00–1.10 m
▶️Structure: Reinforced concrete with glass/SS railing details

🌟Staircase Checks
⏺A comfortable staircase should satisfy the relationship: 2R + T ≈ 550–650 mm

🌎Also check
✓ Adequate headroom
✓ Uniform riser heights
✓ Sufficient tread width
✓ Proper platform dimensions
✓ Accurate setting-out before construction

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