I built this simple shed design for my wife to house 10-12 laying hens. 8'x10' 2x4 studs and rafters, corrugated steel roofing and car siding. 5 nesting boxes and 3 tier roost. 2 Hinged windows with hardware cloth covering for ventilation. Rear guillotine ingress/egress door. Wired for ceiling lights (keep laying in winter) and receptacle to plug in waterer. [Linked Image from i.imgur.com]

You're Welcome At My Fire Anytime