How to build a chicken coop
The front elevation plan
This is the front elevation plan which gives a perspective of the frame viewed from the front.
The skids (i.e. what the chicken coop sits on) are of 4" x 4" (100mm x 100mm) stock and the joists are of 2" x 4" (100mm x 50mm) stock. The 3/4" (18mm) plywood floor is fixed to the floor joists and then the rest of the frame is built on this. The chicken coop frame (wall and roof) is all of 2" x 4" (100mm x 50mm) stock, except for the corner studs which are 4" x 4" (100mm x 100mm).
This plan also gives detail of the roof rafters and pattern for cutting out the bird's mouth. The bird's mouth is the "cut out" piece of the rafter that sits on the top plate, as shown in the diagram below.