There's a lot of discussion about centering the hammock, and the knots that
people tie to hang their hammocks. I've been using a sliding knot on my
main hammock rope. It's based on an old, nautical knot, and seems to hold
well. I weigh a good bit more than most, and I am usually joined in the
hammock by my wife, two kids and usually one of our dogs, at some point.
I've never had it let me down.
The name of the knot is a tautline knot. I won't try to describe the tying
of it, since a quick search on google will bring up graphics that do a much
If a single tautline is not secure enough for folks, then a treesaver strap
at the tree, and a section of light (but strong) line tied in a loop with
sliding adjustible knots can be used. There's no faster way to adjust the
length of the line. I prefer to tie new knots each time, but I enjoy that
kind of thing.
With an ajustable loop, one could easily adjust from 6 inches (adjusted
small with one twist) to about four feet (max extention.) The light line I
use is good to about 1600 lbs in this configruation. The adjustment
wouldn't take more than 15 seconds or so.