If next to the house, the height should approximately align with the top of a nearby window or door. Width can vary. Choose pressure-treated, cedar, or redwood lumber.
1. Begin by digging all postholes below the frost line. Plumb and set the two outside posts in gravel or concrete. Level and fasten the upper and lower horizontal 1x6s, plumbing the posts as you go. When the 1x6s are in place, center the middle post and set in gravel or concrete.
2. Cut to size and fasten the vertical 2x2s of the grill to the upper and lower 1x6s, using 2-inch galvanized deck screws. Plan the spacing so that the holes of the grill are of a consistent size. Attach vertical 2x2s to the inner faces of the 4x4 posts. Cut and fasten the horizontal 2x2s. Cap off the grill with 1x6s at the top and bottom.
3. The top section is supported by a 4x4 attached to the posts with angled screws. The framework of 2x4s, to which the 2x2 crosspieces are fixed, is attached to it. Use 3-inch galvanized deck screws to fasten these pieces.