Over the fall I designed and built a shelter for our ducks in the corner of our food forest. By placing it at the highest elevation in the food forest I am able to easily drain “enriched” duck water into the downhill swales each day.
The bulk of the structure is pressure treated 4×4, likely overkill, but I had extra posts from a fencing project ready to use.
I used a technique for notching and assembling the posts which was new to me, but that I am very happy with. The posts are notched together at all joints allowing easy fastening with 3″ lag screws.
The notches are made by simply kerfing the lumber with a circular saw set to a depth half the thickness of the post. I cut every half inch or so, then simply knock out the notch with the claw of my hammer. Very efficient and fast to do in the field.