Outrageous stair stringers to spiral stair

Darius M — Fri, 29 May 2026 11:31:37 GMT

I'm trying to create a continuous stringer with consistent offsets from the top tread and underside, similar to the stringer on the right side of the stair (although that one also has a connection issue).

The start and end points of the stair must remain unchanged.

This is a single-flight stair with a transition point where the large-radius section meets the winder section with a smaller radius.

So far, both approaches have failed - whether using the default stair stringer settings or the railing tool.

At first the exercise seemed straightforward, but I’ve run out of options after trying walls, morphs, curtain walls, and even meshes.

I’m also concerned about how problematic this will become once I start adding the inner posts.

I’ve included the model file in case anyone is willing to take a look and help.

https://drive.google.com/file/d/19sofG2u-7KrevFIwsZHI9wOxUeutqoDH/view?usp=sharing

Operating system used: Windows 11 23h2

topic Outrageous stair stringers to spiral stair in Modeling

Outrageous stair stringers to spiral stair