thanks...saw that but if you look its really a surface mount and not available for purchase anyway =/
my plywood is 1/2" thick and the tile atop it should add another 1/8" I would think...so there would be about 1/8" overhang on the tray...
I'm more worried about making it not look out of place in relation to the tile. I can't grout to the edge of the tray because it needs to be removable to empty it. so would be an empty space surrounding the tray equivalent to a tile spacer that a flush mount tray would cover up but surface mount would not.
Can a drain be removed from a flush mount tray so I don't need to drill into my lid and still stay flush?