Measure at least 3 feet out from the wall or railing of your porch, using the tape measure. This allows for room to sway back and forth on the hammock swing.
Stand on a ladder positioned 3 feet out from the wall or railing. Run a stud finder along the porch ceiling to find a sturdy joist from which to hang the swing. The stud finder will beep or flash as it passes over a ceiling joist. Mark the spot on the ceiling with chalk.
Drill a pilot hole half the diameter of the hammock swing hook. Screw the hammock swing hook into the porch ceiling, turning clockwise with a screwdriver until the eye of the screw is touching the ceiling.
Attach the ring of the hammock to the ceiling hook. The hammock should sit about 2 feet above the floor. If the hammock is too high up from the porch floor, attach one end of a link chain to an S-hook, connect the S-hook to the hammock ring, then place a link of chain around the ceiling hook.