I have seen pictures of gratings on models (can't remember where) that are split into two or three sections. This kind of makes sense to me as a 4 foot X 8 foot grating would probably be heavy and clumsy. If this is the case I would like to find out before I bury the hatches under beams and ships boats. I've looked in all my resources and not found any reference to this. Does anyone have any info about this?