I just put my OK J LH together, and the porcelain grates came damaged, rubbed raw in about 6 spots. I just called them, the grates are on backorder.. and within 3-4 weeks i will be getting my warrantied replacements. Ive always have been a fan of the expanded metal grates... how they hold up, make the meat look, etc.. Does anyone here make them? i called a local fab shop and they had no idea what i was looking for, so i figured id ask around here. the manual says both grates are 19"x23" and 19"x17.09" but i haven't checked physically if that's accurate. I would be ok with two 19"x20.05", unless theres some reason to keep them 60%/40%.