This is my mild climate design. It's dimensions are about 22 ft. x 12 ft, divided into two sections. One half for the Roosters, and one half for the hens.
Dig the footings, 12 " x 12" and form perimeter with 6"stem walls. Two #4 rebar continuous at bottom
Two slabs for the little coops
Fill the interior with 2-3" of masonry sand
Frame the perimeter with 4x4 posts and 4x4 headers continuous
Center 4' section on each side is bolted to the stem wall with anchor bolts and then 5/8" grooved plywood siding is applied to the 4x4's to create a "shear wall"
A 2x8 is applied along the top for appearance and to carry the roof overhang at each gable end.
I used 2x4's horizontally in each section so that the wire panels would not be too big.
The roof framing is 2x4's at 16" on center. The ridge is 2x8 supported at each end and the middle
The pitch is 4/12
The roof is sheathed with 1/2" OSB. The fascia is resawn 2x8 Spruce
I used a GAF underlayment that can be left exposed for up to six months. This is after the first coat of paint.
The wire fabric is held in place with 1x2 on each side
I made the doors with a 2x3 stile on each side, and 2x8 rail top and bottom, with a 2x4 center rail.
The rails are screwed and doweled through the stiles. I used a table saw to cut a groove in the center to hold the wire fabric.
The fabric is 1/2" x 1/2" 16 gauge GAW (galvanized after welding) 48" x 100' . I wasn't able to source it locally, so had it shipped from Pennsylvania.
Framed small chick doors that are also ramps, 9" x 13". The chickens fit through these just fine. Almost done.
Done. I used roof tile that matches the house.
We bought the little coops to house the chicks while we were building the coop. The nesting boxes are in the little coops, along with some perches.
They sit on the slabs.
So now we are coyote, squirrel, rabbit, rat and mouse proof.