A decorative garden trellis can be a focal point on your landscape as well as a brace for climbing roses, clematis, berries and other flowering vines. Make a copper trellis as a freestanding support for climbing plants. A copper trellis will age with a greenish patina over time which will further enhance your outdoor space. Place a copper trellis along one side of a patio to increase privacy or flank one on each side of a garden path to create an entrance.
Cut 15 2-foot lengths of copper pipe with a pipe cutter.
Spread waterproof construction adhesive onto the inside of one copper elbow and the outside rim of one end of a copper 2-foot length of pipe. Insert the covered pipe end inside the elbow fitting. Some of the adhesive will flow outside of the connection; remove it with a cloth. Use this technique each time you connect a pipe to a fitting in this project.
Add a copper T fitting to the opposite end of the copper pipe with the elbow at the top using waterproof adhesive. The center of the T should be facing the same direction as the open end of the elbow.
Repeat Steps 1 and 2. These are the top sections of the two vertical end supports for the trellis.
Add a copper T fitting to one end of another 2-foot section of copper pipe. Connect a copper cross fitting to the opposite end of the same pipe. This is the top of the center section of the trellis design.
Add copper T fittings to one end of a new 2-foot section of copper pipe. Insert the open end of one pipe into the straight open section of the T fitting at the end of one vertical end support from Step 2. The 90-degree angle section of the T should be facing the same direction as the open end of the elbow fitting at the top of the length of pipe. Repeat this step to lengthen the remaining vertical end support from Step 2.
Connect a new 2-foot long section of copper pipe to each of the straight open ends of the T connectors on each length of vertical end support. The vertical end supports for the trellis are 6-feet long and are now complete. The overall height of this trellis design is 57 inches; 15 inches of the bottom section will be inserted into the ground. Adjust the height of your trellis by using smaller sections of copper pipe.
Complete the center vertical support by inserting a new 2-foot length of pipe into the bottom opening of the copper cross added in Step 5. Connect the remaining copper cross fitting to the opposite end of the new pipe. Connect a third 2-foot long section of copper pipe to the bottom opening of the copper cross fitting. The center vertical support is now complete.
Join the end supports to the center support with lengths of 2-foot long copper pipe placed horizontally between the fittings. Allow the adhesive to dry completely before installing the trellis.