How to make a metal garden arch

Updated February 21, 2017

Garden arches may border the entry to a garden path or provide a focal point in your back yard. Flowering vines and other foliage can embrace and disguise the building material in your garden arch over time. You can build a metal garden arch with copper pipe and soft copper tubing that will hold up well in the elements and provide a simple structure for growing climbing plants and vines in your garden.

Cut four 5-foot lengths of copper pipe. Cut four 3-foot lengths of copper pipe. Cut four 12-inch lengths of copper pipe.

Connect a 5-foot length of copper pipe to a 3-foot length of copper pipe with the straight ends of a copper T connector to make one long pipe. Apply flux to the connection and solder the pipe to the fitting with a propane torch.

Repeat Step 2 three more times.

Attach another copper T connector to the end of the 3-foot long section of each pipe.

Place two of the long copper pipes side by side so the T fittings line up with each other. Make sure the T connectors are facing each other.

Insert a 12-inch length of copper pipe into the base of the facing T connectors. Apply flux and solder the copper pipe to the copper fitting. The two long pipes will be joined together by the sections of 12-inch pipe.

Repeat Steps 5 and 6 with the remaining copper pipes. This is the side frame for your garden arch.

Cut two 5-foot sections of soft copper tubing. Bend each section into a semicircle. Make sure that both semicircles are evenly arched.

Solder one end of each arch into the remaining opening on the copper T fitting at the end of the long copper pipe. Solder the other end of the arch into the T fitting on the remaining copper pipe.

Insert the straight ends of the garden arch at least 18 inches into the ground.

Things You'll Need

  • Copper pipe
  • Pipe cutter
  • 8 copper T fittings
  • Flux
  • Solder
  • Propane torch
  • Copper tubing
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About the Author

Katherine Kally is a freelance writer specializing in eco-friendly home-improvement projects, practical craft ideas and cost-effective decorating solutions. Kally's work has been featured on sites across the Web. She holds a Bachelor of Science in psychology from the University of South Carolina and is a member of the Society of Professional Journalists.