Slackline Express
Slacklining: Verb, The act of having an unbelievable amount of fun walking and doing tricks on a piece of webbing pulled tight between two points, also used as a form of meditation, physical and mental training.
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Force on a slackline

We sometimes get asked how much force is really on a slackline, or how tight or long a slackline can be rigged safely. While we can only give general guidelines, we have provided a quick way of getting an estimate below. Before continuing you should be aware that there are certain limitations of this force calculator. First, it assumes the person is in the middle and is standing perfectly still. Bounces, walking, surfing and any other movement will alter the load. Second, it fails to consider that forces change when loads are placed near the ends of the line instead of the middle. This calculator only succeeds in calculating the lowest force that would be put on the line under the given scenario, not the worst. Please keep that in mind when calculating anything near the maximum load your slackline should handle. For more information about the forces involved on slacklines check out of Slackline Load Tests.

This page was adopted from the original works of Eric Matthes. His original Analysis of Static Slacklines provides more information on the formulas used as well as a nifty graph comparing length and sag of different setups. The formula from his page was used to create this dynamic calculator.

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