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Build a cedar pergola arch

  • Difficulty Level: hammer
    Close Difficulty Levels
    Beginner Do-It-Yourselfer - Easy
    Intermediate Do-It-Yourselfer - Moderate
    Experienced Do-It-Yourselfer - Difficult
    Professional - Expert
  • Completion Time : 1 Day

A decorative element par excellence, the pergola arch welcomes you into a special area of the décor, a haven of tranquility where you can relax alone, with family or among friends.

The arch proposed in this project stands at approximately 105"H. It is anchored to the ground with metal spikes, but you may also use sonotubes (cardboard cylinders) filled with concrete to secure it to the ground. For sonotubes, you’ll need to dig 24" holes in the ground, and the posts will also have to be 24" longer.


Tools and materials required


  • Mitre saw or circular saw with mitre table
  • Screwdriver drill
  • Countersink bit
  • Sledgehammer
  • Pencil
  • Tape measure


  • 8 cedar boards, 2" x 6" x 96"
  • 2 cedar boards, 2" x 4" x 96"
  • 2 cedar boards, 1 ¼ x 6" x 96"
  • 7 cedar pieces, 2" x 2" x 96"
  • 2 ½" treated-wood screws
  • 2 metal spikes

Before Assembly


Pergola arch elevation

Cedar wood

Cedar is a naturally weather-resistant wood and so does not need to be specially treated or painted. But there’s nothing to prevent you from staining it to go with the decor – this will not detract from its beauty.


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RONA Langdon Hardware Ltd. / Fort Erie

1238 Dominion Road, Fort Erie,
Ontario, L2A 1H7

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(289) 320-8250