I made my coop and run out of rigid pvc pipe. I didn't get a picture of the run today, but here are some parts and measurements:
I used 1/2" pvc pipe and fittings
For each frame:
2- 45 degree elbow fittings
2- T fittings
2- 90 degree elbow fittings
The arch formed by the two 45 degree fittings uses a piece of tubing about 50" long
Straight pieces should be cut to give you a frame that is 48" wide overall. It will vary depending on the fitting manufacturer
I made my coop and run 48" tall, but you could make yours shorter or taller. The T fittings form a crossbar somewhere near the middle of the vertical distance, or you probably could eliminate it entirely, if you are making it under 24" in height.
Frames are tied together, 48" apart, using 5- 1" X 2" furring strips (purlins) and metal pipe brackets, two at the base on either side, one in the middle along the top, and two just under the 45 degree fittings at the base of the arch. I drilled the pipe brackets in the middle to screw them into the pipe. This keeps them from sliding out of position.
I cut pieces of a 48" roll of chicken wire to fit. It is then stapled the wire to the purlins and wove them onto the pipes with copper wire.
It is light-weight but strong. For the coop, I took a branch, about 2" in diameter, and fixed it diagonally between two frames at the level of the cross bar, to make a perch for the five hens that used it. I just anchored it to the ground with landscaping staples and covered it in a few layers of black plastic. Once the staples rust, they are very difficult to pull up and if you put them in at cross angles it makes the whole thing very difficult to move. After seven years a racoon got through the plastic at the opening and killed one of my hens, I finally made a wooden door that fit in the panel under the cross bar.
I will attempt to post some photos of the run in the next day or so. Look up "Mittleider greenhouse" to get an idea of the design.
I chose to build in this way because I did not want to spend a lot of money on the birds, and I didn't. It was very cost effective and they have stood up to time and abuse. The only repair I made was to replace a frame on the coop after I dropped a long 12" steel C-beam on it. They are strong, but not that strong.
The one thing I never got around to doing was to recover the coop with sign board. I am down to one ten-year-old post-menopausal hen, so I won't be investing in more infrastructure unless I decide to start another flock after she goes. Those five hens kept my 1/4 acre backyard free of most weeds, which was mainly why I got them. I don't like herbicides and I burned out two string trimmers trying to keep things civilized. They also ate
mice and
voles and almost any bug they could catch. They even kept the boxelder bugs down by eating the really tiny ones (nymphs), before they got big and nasty tasting. I found them once eating the eyes out of a big racoon buck that had electrocuted itself on the pole transformer and dropped into the yard. I wouldn't want to fall asleep, faint or die around a flock of
chickens.