This lightweight travel slackline is less than 1/3 the weight and bulk of a typical commercially sold ratchet setup. Supplies – two D-links or carabiners, one long piece (25′ to 50′) of tubular webbing, one short 6′ to 10′ length of tubular webbing, two towels and two trees 12′ to 20′ apart.
1) Attach one carabiner to the trunk of one tree by looping the short piece of webbing around the tree and tying loops in each end. Attach the carabiner to both loops.
2) Tie a loop in one end of the long piece of webbing, wrap it around the other tree and thread the free end of the long webbing through the loop. Use a towel to protect the trunk and snug the webbing tight.
3) Pull the long webbing across the gap and thread it through the first carabiner.
4) About four feet away from the first carabiner tie a loop in the long webbing and attach the second carabiner.
5) Bring the loose end of the long webbing back and thread it through the second carabiner.
6) Pull the loose end of the long webbing to stretch the slackline then tie off the loose end.
7) The doubled webbing functions as a block and tackle to provide a mechanical advantage that doubles the stretching power.
8) If the carabiners pull together you’ll have to loosen everything and re-tie the second carabiner loop further away from the first.
9) The line may need to be tightened periodically as you walk it.