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Made in the USA Since 1895.
Duvinage provides job specific approval drawings for each customized 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|
|Recomended floor opening is 4" larger than stair size
||30 degree & 22.5 degree layouts are shown below