Building a coop on a stone boat platform

[horselogger50]

I'm going to be building a coop on a stone boat platform so it can be pulled around by a draft horse. Looking to house 20 chickens. What would be dimensions on a chicken coop.

 

[Hokum Coco]

Approximately 10x8 would do the trick and bigger would be better.

 

[horselogger50]

That does thank you. Going to have it set up so that I can get the eggs from the outside