How to build a wooden garden obelisk for climbing plants

Building a wooden garden obelisk for climbing plants is a great way to add vertical interest to your garden while providing a sturdy support structure for plants like peas, beans, morning glories, or climbing roses. Below is a step-by-step guide on how to build one from scratch using simple materials and tools.

Materials Needed:

  • Wooden stakes or dowels (8-10 feet long, depending on your desired height)
  • Wooden slats or thin boards for cross supports (1×2-inch size works well)
  • Wood screws (2.5-3 inches long)
  • Wood glue (optional, for added durability)
  • Exterior wood stain or paint (optional, to protect the wood from weather)
  • Brackets or corner braces (optional for added stability)
  • Sandpaper or power sander

Tools Required:

  • Saw (hand saw or circular saw)
  • Drill with bits (for pilot holes and screws)
  • Screwdriver
  • Measuring tape
  • Pencil
  • Level
  • Wood clamps (optional, but helpful for steadying the structure during assembly)

Step-by-Step Instructions:

Step 1: Measure and Cut the Wood

  1. Determine the size of your obelisk: Typically, garden obelisks are about 5 to 7 feet tall. You can adjust the height based on your preferences or available space.
  2. Cut the four corner posts: Cut four wooden stakes or dowels to the desired height of your obelisk (for example, 6 feet). These will form the vertical frame of your structure.
  3. Cut the cross supports: Cut additional slats (1×2-inch boards) for the horizontal supports. You will need 4-6 crosspieces, each cut to a length that will fit between two corner posts, generally about 12 to 18 inches long.

Step 2: Sand the Wood

Before assembling the pieces, it’s important to sand all the wood surfaces to remove any rough edges or splinters. This ensures a smoother finish and prevents injury during handling.

Step 3: Assemble the Base Frame

  1. Position the corner posts: Place the four vertical posts into a square or rectangular shape, depending on your design preference. For stability, the posts should be spaced evenly (12-18 inches apart).
  2. Attach the cross supports: Use wood screws to attach the horizontal slats between the corner posts. Start by attaching the first pair of cross supports about 12 inches from the bottom of the posts, then space subsequent cross supports at regular intervals (about 12 inches apart) as you work your way up.
  3. Secure with screws: Pre-drill small pilot holes to prevent the wood from splitting, then use screws to attach the cross supports tightly. For added strength, you can use wood glue at the joints, especially if you’re not using corner braces.

Step 4: Add the Vertical Supports

  1. Add diagonal bracing (optional but recommended): For extra stability, cut two slats of wood to create an “X” shape between the vertical posts. Attach the ends of these diagonal supports to the frame using screws. This will prevent the obelisk from wobbling in high winds or as plants grow.
  2. Repeat the process for the remaining diagonal braces on each side of the obelisk.

Step 5: Secure the Structure

Once the frame is fully assembled, double-check the alignment using a level. Adjust if necessary, ensuring that the obelisk is perfectly straight and square. You may want to add additional screws or corner brackets for extra strength, particularly if the structure feels loose.

Step 6: Finish the Wood

To protect your obelisk from the elements, it’s a good idea to finish the wood with an exterior wood stain or paint. This will help protect the wood from moisture, decay, and UV damage over time. Apply one or two coats, depending on your preference, and allow the finish to dry completely before moving on.

Step 7: Install the Obelisk in Your Garden

  1. Choose a suitable spot: Decide where you want to place your obelisk in the garden. It’s best to position it in an area where it will receive adequate sunlight for the climbing plants.
  2. Dig a hole (optional): If your obelisk is top-heavy, you may want to anchor it by digging a small hole in the ground and planting the bottom of the frame in it. This will help stabilize the structure.
  3. Position the obelisk: Place the obelisk in its designated spot. If you didn’t dig a hole, make sure it’s standing securely, and consider using stakes or ties to further stabilize the base.

Step 8: Plant Your Climbing Plants

Now that your obelisk is in place, it’s time to plant your climbing plants! Some good options for vertical gardens include:

  • Climbing roses – for beautiful blooms
  • Sweet peas – for fragrant flowers and edible pods
  • Clematis – for a dramatic floral display
  • Beans and peas – for an edible, productive garden
  • Morning glories – for fast-growing vines with colorful blooms

As the plants grow, gently guide their tendrils onto the wooden slats for support. Over time, your obelisk will become a beautiful focal point in your garden, and your climbing plants will thrive.


By following these simple steps, you can create a functional and attractive wooden garden obelisk that will enhance your outdoor space. Not only will it provide vertical interest, but it will also serve as a durable support for your climbing plants for years to come.

For more woodworking ideas and plans, check out Teds Woodworking Course here: https://5ec0fkma1rtoqesrt51ay-tfcv.hop.clickbank.net

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