Understanding the different types of static rope
“Static rope” is one of those terms climbers use all the time, but it can mean something slightly different depending on who you’re talking to.
In rock climbing, when we talk about a “static” rope, we’re usually referring to a semi-static rope: a rope with significantly less elongation than a dynamic climbing rope used for leading. Semi-static is generally plenty static for top rope soloing or jugging across normal pitch lengths.
But in rescue and industrial applications, a few percentage points difference in static elongation can make a large difference for hauling heavy gear across larger rope distances. So, there are further categories of static rope stiffness going from semi-static to hyper-static. But for top rope soloing, the most static rope you can find isn’t necessarily the best choice.
These industrial "hyper-static" ropes are considerably more expensive because achieving such low elongation often requires higher-tech materials and construction.
Look at Static Elongation
When choosing a rope for TRS, one of the most useful numbers to look for on the manufacturer’s spec sheet is Static Elongation.
This tells you how much the rope stretches under a specified load.
For top rope soloing, we’ve found that ropes around 3 - 4% static elongation tend to strike a good balance.
Here's the spec sheet for our go-to rope for top rope soloing
Most ropes in this range are made from nylon or polyester and are relatively affordable compared with some of the ultra-low-stretch options. For TRS, our favorite diameter is 10mm. This burly rope feeds well with a two Progress Capturing Pulley setup, is easy to rappel on with a GriGri, and is thick enough to work well with a Taz Lov.
Ropes with less than 1% static elongation can also make falls feel noticeably harsher. Though, with a good autofeeding setup, a TRS fall should be similar to just sitting back onto the rope.
So instead of simply looking for the rope with the lowest possible elongation, be sure to realize that stiffness demands for recreational climbing are quite different than industrial applications. Around 3 - 4% static elongation is a good place to start for top rope soloing.
