Aluminum Spiral Stair by Duvinage

Sample Stair Drawings

Duvinage provides job specific approval drawings for each custom Duvinage stair. The below layouts and drawings are provided for reference only. Please contact us for a free consultation to discuss your next project.

Spiral Stairs Typical Upper Level Drawings Typical Lower Level and Elevation Drawings
Recommended floor opening is 4" larger than stair diameter for custom and 2" larger than stair diameter for kit.
upper level spiral Stair technical drawing		 30 degree & 22.5 degree layouts are shown below.
spiral stair elevation drawing