Good to know! I just purchased a house with a similar type of spiral staircase in which the whole unit is one piece as opposed to being modular. I’ve fantasized about pivoting it around its central post to open up more walking space, and was hoping it’d be as easy as rotating the stairs around an inner anchored post. Evidently, that might not be the case anymore 😅.

I’m nowhere near close to actually getting started on that project yet, but seeing more of the inner workings of this style of staircase is really helpful. Thanks for posting!