Mark off where the fence installation location with spray paint. Mark an “X” at each spot where you are installing fence posts. Refer to the instructions that come with the fence for specifics on spacing between posts.
Call the utility companies to identify underground lines. Although you aren't digging holes, you are still driving metal spikes deep into the ground.
Measure off two feet from the bottom of each fence post with a tape measure. Make a line across all four sides of the fence post at the mark using a carpenter's square to ensure the line is straight and square.
Install a plywood cutting blade on your circular saw. The plywood blade is a fine-tooth blade and cuts through the vinyl fence post without causing splits. Cut the bottom of the fence posts at the line with the circular saw. Place the carpenter's square on each side to ensure the cut is straight. If necessary, sand the edges of the post until the bottom is square.
Position a post holder spike at the center of your “X” on the ground. Insert the 4-by-4-inch block of wood into the box on the top of the spike. Hammer the top of the wood block with a five-pound hand sledgehammer and drive the spike into the ground until the bottom of the box is level with the ground. Remove the wood block.
Insert the vinyl fence post into the box of the post holder spike. Drive 2-inch self-drilling screws into each of the mounting holes on the box and into the vinyl fence post with a cordless screwdriver or a drill with a Phillips bit.
Install each fence post just as you did the first. Install the fence rails or panels according to the manufacturer's instructions.