This Instructable will present a way to make a tree saver from a seat belt. I tried to come up with a way that did not require sewing. I will add sewing to this Instructable at a later time as an alternative to tying belts.
A tree saver is a wide belt or strap that is used to tie onto a tree. Due to its width it will not dig into the bark of the tree when pressure is applied to it.
Seat belts are ideal for tying up hammocks since they are wide and will not stretch when weight is applied to them.
Screwdrivers (to remove car panels)
Wrenches (to detach seat belts)
Hack saw (to remove hardware on belt)
Scissors (for trimming belt)
Lighter (to seal edges)
Quick links (to create tightening loops)
Optional Tools and materials:
Fishing line, 20lb test, (for sewing belts together)
Miscellaneous information :
From what I have researched online, a seat belt will have a tensile strength of greater than 3000lbs, some are more like 6000lbs. Reducing the width of the belt will not effect it's ability to support your weight.
Seat belts are sometimes made of polyester and sometimes of nylon. The newer belts are polyester. The longer belts I have are from a vehicle that was 25 years old. I noticed that they have a tendency to fray easier than the newer belts.
Step 1: Find Seat Belts
One of the cheapest and easiest places to get seat belts would be at a self pick junkyard. Ask what the yard charges for a belt before you cut or remove one. If you cut it off instead of unbolting it they may make you take it, so confirm the price first. Take a sharp scissors or knife, screwdrivers and wrenches to remove the belts.
I had seat belts from a pickup truck that I had scrapped a few years earlier. I did not need to visit a junk yard because of this. Visiting a scrap yard is always fun and I recommend it for any hacker!
To detach belts from the front of a vehicle you will often need to remove interior panels. The panels are generally screwed in. To remove belts from the rear of a vehicle you will probably need to remove the bottom seat cushion. Seat cushions sometimes clip into place without screws or bolts.
I had two belts that were 8 feet long and I also had some shorter belts that were unbolted from vehicles. I used these together to have two straps approximately 11 feet in length (335cm). I would suggest taking a tape measure to the junk yard so you can compare belts from different vehicles.