Just in case you are thinking of building a CatawbaCoops Chicken Ark, here is my advice.
- buy 1 more length of 1x4 than called for.
- skip the whole angle iron business and simple get some 1x1 from the trim department.
- skip the difficult-to-cut and easily-split shims and find something to substitute in the trim department.
- if you live in the Pacific Northwest, make sure that any part that will touch the ground is cedar