I just started to convert my old dog coop into a small chicken coop/breeder pen. I plan to put my silkies in there. Im guessing its about 4-5 feet long, and about 4 feet high and maybe 3 feet across.? Its 15 years old but in great shape. The frame if pressure treated 2X2's. So, today I took of the one side. I measured out a new board, cut it. etc. Then I measured out little open doors. About 12" tall by 10" wide. (It will be housing 2 trios of silkies). Then I cut out the doors. I am going to be running a piece of hardwire cloth down the middle, that way it is two pens in one. Then Im going to make two doors on the outside so I can keep 2 trios of silkies seperate by colors. Im going to make a fence out of hardwire or chicken wire and close it all in and make it predator proof. Ill post pictures maybe tomorrow. LoL! It must be alot to understand.