Bet TeeGee has....
Like the confidence you have in me Saddad ;) ;D
They don't seem to do trays in our area any more, they tend to mark out an area on the show bench.
I still have my tray I used in 'The Garden News Tray' this is it with some carrots I grew. From memory the tray was 24" x 18" in size.
I took this at last years Harrogate show; note no trays!!
Can't recall where I took this one;
I have more somewhere but I would have to go into the archives for those