That is exactly what I have.
I recomend marking the center point of that 30' piece with some tape, to avoid cutting it in half (for now). You'll work with one of these decicated 'halves'.
Find some rope or any flexible object and cut it into three ~6" lengths if you want a 3-step etrier. The rope I used was some 11mm assault line and it is perfect.
You'll want the bottom step to be centered, with the next two steps offset; one oriented to the left, the other to the right. To do this, push the 6" rope sections into the rope. Be sure to use the center rope section for the bottom step of your etrier or you will have the next two steps on the same side of your etrier...dont ask how I discovered this; easy fix though.
You will likely have to adjust the knots a couple of times to get each step length where you want them. It took me less than 5 minutes total to make my second one. When the step lengths are done, you may have to loosen the knots to twist them slightly so your etrier isnt twisted when hanging on your stick.
I am seriously considering only using two sticks for the early season along with my 2 Wild edge Stepps and 2 homemade aluminum angle bracket steps as a platform. I need some dadgum Ameristeps...
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