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I'm in the midst of putting my pergola together. I have a general sense of how it comes together, but I'm trying to figure out the best way to handle a special feature I want my pergola to have: rotating slats. I want the slats to be able to swivel and close kind of like Venetian blinds (we live in a rainy environment).

I've already figured out water movement and such (weep holes, channeling water), but the biggest concern I have is how to mount the slats to the cross beams. I am thinking a 3/4" stainless steel rod is a good bet to insert into the slat, but for the crossbeam, what should I use? I was thinking maybe sealed bearings, but I think those will be far too precise and tight for my usage (given wood movement/expansion and whatnot).

Are there any outdoor solutions for something like this? I've added a picture at the bottom to clarify the essence of the mount.

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    Could look around for a block like or pipe/tube of nylon. Used sometimes for low speed rotation bearings.
    – crip659
    Jun 4 at 1:03

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