We can supply finished fiberglass hatches, made locally. Two versions available now, one trapezoid style and one rectangle. These are very nicely finished, include gasket, recessed hinges and latch. The hatches are designed to sit on the topside of a hole (like a flange), then you would fair it flush. Non-skid is molded into the hatch (non-skid used in making the plug for these was the Kiwigrip we sell, so it woudl match the rest of your deck

There is a section of the drain channel that is flat so you can put in a drain line
hatches are available for purchase here:
http://www.gulfstreamcomposites.com/category-s/124.htm
the rectangle hatch measures 20"x34.5" from flange lip to lip, hole size would be 18.25" x 32.5" price: $300
the trapezoid (longer side) is 18"x31.5" from flange lip to lip, and 16"x29.5" hole opening price $300
Black plastic latch is standard, the SS latch is $25 extra.
For anyone who has made your own deck hatches, you know how much work this saves :!:
please call me if you want to order one. 772.633.7923 Joel