Quarter Turn Curved Staircase | Modern Interior Stairs | SketchUp 2018

Smooth radius staircase with balanced step proportions

Free

This quarter-turn curved staircase features a smooth radius geometry with evenly distributed steps, making it ideal for modern interior layouts.

The model is built with clean topology and properly organized groups for easy editing and customization. Its compact curved form is perfect for corners, duplex units, and space-efficient architectural designs.

Fully compatible with SketchUp 2018 and above, optimized for rendering engines such as D5 Render, V-Ray, Enscape, Lumion, and Twinmotion.

A practical and elegant solution for architects, interior designers, and 3D visualization professionals.


Key Features

🌀 Smooth quarter-circle curvature
🪜 Full riser stair design
📐 Accurate step spacing
🏗 Clean grouped components
🎨 Easy material editing
💻 SketchUp 2018 compatible


Best Used For

🏡 Duplex & residential interiors
🏢 Modern home renovations
📐 Architectural floor plan optimization
🎬 Rendering & presentation scenes
🏠 Space-efficient stair solutions