Cruising concepts in the Northwest made a really nice teak grate for our cockpit. We simply made a template from newspapers and mailed it to them along with where the pedestal or other objects were. It was 3 pieces and went down and up easily for cleaning. Looked great and was very affordable. I have pictures if you are interested.
S/V Black Diamond Hylas 49-057
Give it away. Seriously. There are other ways to deal with cockpit gratings that cost much less than teak. And, by the time you add the $100/hr for the tradesman to make it for you, unless she is concours d'elegance type boat, you should spend your waiting time sailing her.
Ann & Jim, U.S. s/v Insatiable II, SE Qld, for a while