working vs breaking strength
Quote:
Originally Posted by
Junebugdawn
I realize it has a lower breaking strength of 900lbs, but that should be plenty strong for suspensions. It is considerably less expensive than poly webbing. The description clearly indicates that it is popular for outdoor camping use.
Not quite sure that is correct. You should figure "working" strength to be about one fifth, or if you want to stretch it a bit, one fourth of the "breaking" strength. While 900 lbs is fine if you're still and not moving around, when you bounce up and down, or turn over a bit faster than usual, I think you could easily exceed the 900 lb breaking strength. Plus, as the straps get used, a lot of nicks and cuts will show up, which weakens the strap a bit. Plus, if you have any sort of knot in the lines, that will weaken the line about 50%. I think the minimum working load for hammock suspension lines should be around 600 - 750 lbs. That means a breaking load minimum of about 2,400 to 3,750 lbs.