Replace floor with??

[RWilson2526]

A couple more tips these guys taught me when I did mine was,

cut the holes out after everything is all said and done. And then coat the edges .

Drill some holes in the plywood to let the resin find a place to go instead off squeezing out the edges.

Put some Saran Wrap or some kind of plastic between the access holes and your work table so you don't glue your hatch to the work bench!

Oh and get lots of heavy things ready before hand to set on top of the ply., sand bags, tool boxes cinder blocks. And make sure your work table is perfectly flat, floor works well too