### Step 1: Position the Line

To square the fence line to the house, you'll mark off a right triangle extending from the foundation. Sink one stake for the triangle's corner where the first post will go, and a second one 3 feet away along the foundation. Tie a mason line to the first stake, stretch it taut roughly perpendicular to the house, and mark it 4 feet from the stake. Find the 5-foot mark on a measuring tape and angle it from the second stake toward the line. Now cross the taut line and the tape until you get the 4-foot and 5-foot marks to meet. When they do, according to the Pythagorean theorem, you have a 90-degree angle at the triangle's corner—and thus a perpendicular line intersecting the house. A bigger triangle (say 9, 12, and 15 feet) works even better.

#### Shopping List

1. 4×4 pressure-treated posts
Get them long enough to go below the frost line; at least one-third of each post must be buried.

2. Cedar 1×6 lumber
To be ripped to make the post sleeves, stops, and cap rail.

3. Cedar square lattice
Get 4-by-8 sheets that can be cut into two panels each.

4. Self-adhesive flashing to protect the portion of the post set in concrete.

5. ¾-inch drainage stone

6. Concrete
Choose a fast-setting mix.

8. 1-inch trim-head stainless-steel deck screws

9. 3-inch stainless-steel deck screws

10. Polyurethane glue

12. Painter's tape

13. Post caps
Get 5¼-inch post caps to fit over the sleeved 4×4 posts.