So, I've finished my 10'x10' coop. In about another week, I'm going to be putting in the birds.....15 hens and 13 Bantams (hen/rooster mix). The floor in my coop was part of our old deck which was covered in 2"x8" boards. Between each board, there is about a 1/4" gap. Is this going to be ok or do I need to put plywood down? I'll prob. use a combo of straw/shavings for the coop floor and thought that these slits might help in ventilation???? maybe they won't?????? Thoughts? BTW, if I sheet the floor now, it's going to be a chore going around the bases of my perches etc. etc.