Add a lattice-panel trellis to an arbor structure for a more decorative appearance. Using manufactured lattice panels and lattice molding, and hanging the panels with metal fence-panel hangers, makes the job inexpensive and quick. Or, you can build your own lattice and frame. Plant climbing plants and train them up the trellis to embellish the arbor-and-trellis.

1. If the planned trellis is wider than 4 ft., you will need additional support posts. Install posts using the same materials and techniques used for the corner posts of the arbor. If possible, install the posts so the lattice panels on either side of each post will be equal in size.

2. Measure the openings between the posts to determine the sizes for the lattice panels. Generally, panels should be sized so they are installed below the cross braces between posts. Leave a few inches of open space beneath the panels at ground level. Mark the locations of the panel tops onto the posts, using a level to make sure the tops are even.

3. Subtract 1 1/2" from the frame opening dimensions, and cut the lattice panels to size. To cut lattice panels, sandwich each panel between two boards near the cutting line to prevent the lattice from separating. Clamp the boards and the panel together and cut with a circular saw.

4. Miter-cut 2 × 2 lattice molding to frame the lattice panels. The finished width of the panel should be 1/2" narrower than the opening. Nail one vertical and one horizontal frame piece together with galvanized brads. Set the lattice panel into the channels, and attach the other frame pieces. Secure the lattice panels into the molding by driving brads through the molding and into the lattice at 12" intervals.

5. Attach three fence brackets to the posts, evenly spaced, on each side of the opening, using 4d galvanized nails. On the top two brackets, bend the bottom and top flanges flat against the post. Bend all outside flanges flat.

6. Set the panels in the brackets, and bend the hanger flanges back to their original positions. Drive 1" galvanized nails through the flanges of the fence hangers and into the frames of the lattice panels.