Welcome, I believe it’s around 22”. I’ve never put a tape on them though. It’s a perfect distance for me. It can be done in thinner clothes or thicker clothes. I have a 2 step aider for each stick as well, but find gem a bit cumbersome in some situations. So I have them set up now to use a 2 step on the bottom stick, and a 23” single aider on the other 2 sticks. It will be done similar to davet1963 as well, the bottom aider stays on the stick but the top aider hangs from the top of the stick so I can grab it and put it on the next stick and then store it in a pack once I’m up so it’s not dangling around. If you watch his videos, what I just said will make more sense.
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