This is the poultry house slat flooring I put in my coop it comes in 2'x4' sheets has 7/8" square holes and is 1" thick. The panels interlock and are fastened down by screws on 1ft. centers. It can be pressure washed and has UV inhibitors. I put 1/2" square hardware cloth underneath it to keep vermin out. In my hot humid climate I think it will work good. It is what most poultry houses around here are using now.
I purchased it from Southwest Agri Products of Texas for approximately $13.00 a sheet which is half of what the chinese junk is selling for and this is made in USA in Texas. This flooring also works great in dog kennels they make it in black and white but the black has a higher UV resistant rating.
//xtremeroosters//