Forums: Climbing Disciplines: Slacklining:
How much is too much?
RSS FeedRSS Feeds for Slacklining

Premier Sponsor:



Jul 25, 2006, 11:28 AM
Post #1 of 2 (1088 views)

Registered: May 29, 2004
Posts: 170

How much is too much?
Report this Post
Average: avg_1 avg_2 avg_3 avg_4 avg_5 (0 ratings)  
Can't Post

Just a bit curious about whether or not anyone has broken a slackline while tightening it, and if so, what kind of set up did you have? I don't really think we were close to doing so, but we tried to set up a 50 foot line yesterday over a river and even after 3 of us locking down pretty tight on it we were still getting about 2 feet of sag. I guess I am wondering if it is safe to try to pull a 50 foot line super tight to reduce the sag to little or none at all, or if that will get us close to the breaking point of the line.
I'll take my answer off the air.

Partner slacklinejoe

Jul 26, 2006, 6:43 AM
Post #2 of 2 (1088 views)

Registered: Nov 5, 2003
Posts: 1423

Re: How much is too much? [In reply to]
Report this Post
Average: avg_1 avg_2 avg_3 avg_4 avg_5 (0 ratings)  
Can't Post

I've broken a few lines while testing stuff - not plesant. But never during tensioning and never on a full strength line that wasn't using horribly abused webbing. I'm sure there are several other folks on here that have broken lines too.

Despite what it feels like, during the tensioning of a line the forces usually aren't that high (or at least not for anything under 100 feet or so). It's when weight is in the middle of the line that the forces jump up.

For calculating how much of a load the system sees while your on it, you might find my Slackline Force Calc handy.

My generalization is expect six inches to a foot of drop for every 10 feet between your anchors.

Also, since you mentioned over a river I figure it's worth mentioning wet webbing stretches like crazy. You have to tighten that stuff up an amazing amount.

Forums : Climbing Disciplines : Slacklining


Search for (options)

Log In:

Password: Remember me:

Go Register
Go Lost Password?

Follow us on Twiter Become a Fan on Facebook