For any of you who have the BlackStone Flat-top griddle, I found something that works very well to help protect it from the elements.
I found these at Menards.
I have the 28 in. model & two of these fit perfectly on the top.
This keeps the cover from laying down against the top surface.
They are an absolutely perfect fit for the 28 in., but I'm sure would work very well on the 36 in. also. (or probably the Camp Chef or other flat-top)
I then put the BlackStone cover on. It looks too big but I didn't leave the shelf on to store it. It also is a good fit with the shelf on.
I then covered it with a tarp.
At the moment my various cooking toys are sitting on an uncovered deck, But very shortly I will have a roof over them.