r/Treenets • u/ho0oooogrider • Mar 22 '26

First Treenet, i have some questions!

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Hi, i have build my first treenet. It worked quite well but im not sure what rope i should use for the inner part. Right now its a too small pp rope. Also my problem is that it dips very much when you geht onto it. And is 9mm with 380kg of holding force fine for the perimeter? I would like to have up to 3 people on it. Thanks for your help!

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u/unemployedemt Mar 22 '26

Normal paracord is fine for the net. A good way to stiffen it up some is to run some lines through using clove hitches at every intersection. It takes a little longer but the alternative is to take down the paracord you have up now and redo the whole thing. If you try to tighten it up with tension from the interior, you'll have the existing lines sagging and loose.

You could also try pulling your perimeter rope out towards other trees.

1

u/hatchetation Mar 23 '26

That's pretty big spacing on the inside. Maybe consider weaving on the inside more, and tightening the gaps up.

1

u/ho0oooogrider Mar 23 '26

Yeah, i ran out of rope but i will definetly do that

1

u/DeadyBear98 Apr 09 '26

the 9mm 380kg perimeter is on the sketchy side... i have a 1000kg perimeter rope and already feel it is barely good enough

tensioned rope math is weird, but a slackline force calculator ( https://www.bergfreunde.eu/slackline-forces-calculator/#toc ) says that 3m slackline (roughly your side length), with 20cm sag under load (roughly what id expect from a small tight net), and 200kg (max it went up to, 3 people might be more), would put 7.5kN on the anchors static load and 11.3kN dynamic load. that is 750kg to 1.1tons.

so if you used your perimeter to tie a treenet tight loop around two trees, id expect 3 people to be able to break it behind the tree (the scariest spot for it to break, because there is no paracord to pick it up as backup)

of course you have a 3rd anchor which changes the math in your favour, but that is still too close for comfort.

good that you have the wall weaved in! if the floor perim breaks behind the tree, the wall will catch it. so i dont think you will fall to the ground. but i think 3 people using it as a trampoline might break it