Hi,

I have a wrought iron umbrella base sitting on my wood deck.

It is powder coated and rust proofed to some degree, but I am still worried about it leaving rust marks on my wood deck.

Is there some thin flat mat or grid or something I can lay under the umbrella base to allow the air flow around the bottom so it dries quickly (after rain) and doesn't create rust marks?

Something like a cooling rack (for cookies!) but something rustproof I could use outside? thin flat sturdy w/ airholes?

Thanks!