Thank you Chris for your reply. Sorry for responding late. I have seen some with the tongue and groove cladding you mentioned. They look very nice so might go that way. I've decided on a portable one that I can move around the garden so which ever way is lightest I'll go with. Thank you both...
I would like to make a chicken coop for 12 laying hens because all the ones I have liked are way too expensive. I want to use marine ply because of it's weather resistance and lack of places for red mite to hide but all of the posts I have seen on the stuff have mentioned how expensive it is...