Apaha - Civil Engineering Training Institute on Instagram: "🧱 12 Types of Staircases Every Civil Engineer Must Know! (Perfect for site planning, design & execution) 👷‍♂️🏗️ 1. Straight Staircase ➡️ Simple, linear flight — most common in homes. 2. L-Shaped Staircase 🔁 Turns 90°, usually at a landing — saves space. 3. U-Shaped Staircase (Half Turn) 🔄 Two parallel flights with a 180° turn. 4. Spiral Staircase 🌀 Circular, around a central pole — compact & aesthetic. 5. Helical Staircase 🧬 Like