Sample Stair Drawings

Duvinage provides job specific approval drawings for each custom stair. We provide standard model drawings for your architectural plans. Use the layouts below to develop your spiral stair requirements. These drawings are provided for reference only. Please contact us to discuss any requirements you have.

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