Drill a hole through each end of the hardwood dowel. The holes should be about an inch in from the ends.
Attach a carabiner clip to each end of the dowel through the holes you just drilled.
Fasten the ends of the hammock strap to the carabiner clips by slipping one of the rings of the strap into the carabiner clip on each end of the dowel.
Find the point of the hammock strap that is in the middle and pass it over a sturdy tree branch. Pull it down to raise the chair to the height that you want it to be.
Tie off the strap by first wrapping the end of the strap around twice and the go over and back down through the two wrap loops. Tie a knot again below that and the chair is ready to sit in.