Step 5: Assemble the Frame

assemble the frame
Photo: Kolin Smith
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The lattice panels that make up the climbing portion of the trellis float freely between two stops of 1x1s attached to the 2x4 frame. Because this sandwich of strip, lattice, and strip is thinner than the 2x4, it creates a stepped-down reveal between the frame and the lattice, which must be consistent all the way around when viewed from the front.

Using a circular saw, cut four 1x1 strips to fit between the uprights. To create the vertical stops, cut four strips to the length between the notches on the sides, minus 1½ inches. Set the stops on the 2x4s, positioning them ¾ inch away from the edge by holding a 1x scrap as a spacer (the true width of 1x material is ¾ inch). Using a drill/driver, screw the stops to the inside of the frame with 1 5/8-inch screws.

Pro Tip: Assemble larger trellises near the site so that you won't have to transport the heavy piece too far.
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    Tools List

    • circular saw
      circular saw
    • speed square
      Speed square
    • straightedge guide
      straightedge
    • combination square
      combination square
    • chisel
      chisel
    • hand saw
      handsaw
    • drill
      drill/driver
    • two-foot level
      2-foot level
    • post hole digger
      posthole digger
    • 7 foot digging bar
      digging bar
    • pointed shovel
      shovel
    • tamper
      small hand tamper

    Shopping List

    1. Cedar or pressure-treated 2x4s for the frame. Keep in mind that two adjoining trellis panels will share one vertical frame piece.

    2. Cedar or pressure-treated 1x1s for the stops that hold the lattice.3. Cedar or pressure-treated lattice fencing comes in 4-by-8-foot sheets. If you're building more than one panel, get both straight and diagonal lattice. 4. Cedar or pressure-treated 2x6—to cap the tops of the panels.

    5. ¾-inch gravel for drainage in the postholes. Four 50-pound bags will be enough.

    6. 1 5/8-inch self-tapping deck screws

    7. 3-inch self-tapping deck screws