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
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