I previously discussed how I framed the Chicken McMansion with two external nesting boxes in this thread: https://www.backyardchickens.com/forum/viewtopic.php?id=283812 I got bored watching the lousy football being played today and decided to be productive instead. It was the second sunny day in a row here so I figured I should take advantage of it... I have been noodling for weeks about how best to go about building and attaching the nest boxes for my coop. I am to the point of being almost ready for siding, and I decided to side around the nest boxes instead of building them over the siding. I started by sketching what I wanted on a large sheet of graph paper to get a grasp on the essentials, and I opted for building it to the coop in pieces. I started by carefully making two identical end pieces which I screwed into place after making sure they were square. Then I measured, laid out and cut the bottom and back panels. I tacked everything together with my air nailer then went back and secured it all permanently with Gold Screws. I also measured out lengths of 2x2 and a couple of pieces of 2x4 and attached those to the plywood pieces with screws. If you study the pictures, you can see how I put this together progressively. i intend to fill the spaces between the 2x2s with more 1 1/2" block foam and then cover the sides with T-111 siding. My intention is to build a top frame out of 2x2 lumber that fits inside the opening for the lid, and then capping the whole thing with an oversized piece of plywood. It will be hinged to lift up for egg gathering and then lock back down tightly and securely. Then I can insulate the top and cover the inside of it with plywood. It even fits under the drip edge of the roof...kinda like it was designed that way..... The inside of the box is 16" deep, 12" high at the back and 16" high in the front. I'll lose a little hight with the lid, but these are spacious nest boxes. I'll add a strip of wood across the front to help retain the nesting material and we'll try these as communal nest boxes at first. If we have to partition them later, it will be pretty simple to do. I'll prime all of the wood with Kilz and probably use epoxy paint on the floor at least, if not the entire box. This should be easy to clean out and a nice warm quiet nesting box. There will be one just like it to the left of this one, and accessed from inside the run. Too big?? Too small? Just about right?? Comments and suggestions are certainly welcome.... Cheers!