Opened a floor today because we had few inches hole, so just in case I cut a "bigger" piece out. I noticed of the side of the "steps" has a factory "slide cut " where the latch is sliding out for the steps. so in that place wasp came in and built nests .
Also it was full of mud , and wet stuff... My question is it was covered originally?
Here is the rest of the parts:
To avoid the head ache to replace a whole of piece plywood , I just will replace a "half" size section , it is easier to slide under the wall .
Looking to put in a Marine grade plywood, and didn't look up yet what insulation I suppose to use .. ?