Determine where you want to install the privacy trellis so you can determine an appropriate height. Ideally, a 6-foot high trellis provides privacy without giving the enclosed area a fort-like appearance. However, decide the height depending on your requirements.
Also decide what material you want to use. You can build a trellis from wood, PVC pipes, metal stakes with wire running through them or bamboo poles. However, pre-treated wood is the best option since it has a natural look that blends well in a garden.
Purchase two 8-foot long pre-treated 2-by-4s for the vertical posts of your trellis and a prefabricated 4-by-8-foot lattice trellis sheet from your local hardware store or home department store.
Lay the prefabricated lattice trellis sheet on the ground. Measure 6 feet in length and mark the spot with a marker. Extend the spot to the other end by making a straight line with a marker.
Use a handsaw or circular saw to cut over the marked line on the lattice sheet carefully.
Lay both the 2-by-4s on a flat and even ground, parallel to each other, four feet apart. Place the lattice sheet over them, ensuring their tops are even and aligned. Use a carpenter’s level to make sure they are all level. The additional 2-feet of each 2-by-4 will go deep into the soil to support the trellis and hold it upright.
Wear your protective eyeglasses and earplugs and drill several 2-inch wood screws into the lattice sheet to connect it to one of the 2-by-4’s placed under it. The last screws should be 2-feet above the lower ends of the 2-by-4s.
Repeat the procedure to connect the other side of the lattice sheet to the second 2-by-4.
Measure and mark the location on the ground for the trellis poles with powdered chalk. Use a post-hole digger or a narrow shovel to dig two 2-feet deep-holes.
Place 4 to 6 inches of gravel into the hole to hold the trellis poles upright and ensure proper rain water drainage.
Lower the trellis into the holes carefully. Use a shovel to add dirt back into each hole, and tamp the surface down to remove any air pockets.