Originally Posted by Cheshire
It could been awesome but I'm from Ukraine
so have no possibility to deal with King Plastics as it will be overpriced for me as of delivery
costs. So should just search something here. And I just found some advertising agency which producing outdoor adv. So they have some plastics for outdoor use with UV-stability.
Regarding thickness I'm not worry of its deformation as I think will use 5+ in any case but of its appearance because of possible protruding edges in case of exceeding the thickness of the pedestal
slot for this plate.
Oh maybe my Eng is poor to discuss such technical details but I'm trying.
Ah, hadn't noticed. Your English
Can you not measure the thickness of the existing piece pictured?
Anyway, I'd guess any decent plastic (or polyethelene, etc.) between 5-15mm ought to work for rigidity, maybe influenced by how it looks to you.
FWIW, Kings says they have "overseas" distributors, in case they may have somebody nearer you.
Here, we can also order stuff like that from McMaster-Carr (mcmaster.com) which is huge supply house for fasteners and probably at least one each of everything else in the world. I'd suspect they ship anywhere too, although your point about shipping
cost is well taken.