Modern Curved Spiral Staircase | Floating Helical Stairs | SketchUp 2018

This modern curved spiral staircase features a smooth helical rotation with a central structural support and floating-style treads. The dynamic form makes it ideal for luxury interiors and contemporary architectural projects.

The geometry is clean, well-organized, and fully grouped for easy modification. The structure allows material customization for wood, metal, glass, or concrete finishes.

Compatible with SketchUp 2018 and above, optimized for rendering in D5 Render, V-Ray, Enscape, Lumion, and Twinmotion.

Perfect for designers who want a visually striking yet functional stair solution.

Key Features

🌀 Smooth curved helical design
🪜 Floating stair treads
🏗 Central structural spine
🎨 Fully editable materials
🧩 Clean grouped components
⚡ Lightweight & render-ready
💻 SketchUp 2018 compatible

Best Used For

🏡 Luxury villas & duplex homes
🏢 Modern residential interiors
🏨 Boutique hotels & showrooms
📐 Architectural visualization
🎬 High-end render presentations