This site has a drawing with dimensions for a copper trellis. The original plan called for assembly with liquid nails, I chose to solder all of the joints. I have constructed two of them and they have formed a nice shade of green patina. Some of the dimensions aren't correct and measurement of the pieces before cutting should be done. All of the fittings are standard copper pieces. The photo shows the trellis when it was constructed and before the patina had formed.