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How to tie the Double Surgeon's Loop

by LiangLishan 06 Jun 2025 0 Comments

How to tie the Double Surgeon's Loop?

Use case: creating a loop

Ah, the Double Surgeon’s Loop—sounds fancy, right? But honestly, it’s one of those knots that looks way more complicated than it actually is. I remember the first time I tried tying it, I fumbled so bad the loop looked more like a tangled mess of spaghetti. But hey, that’s how you learn, right?

So, what’s the deal with this knot? Basically, it’s a beefed-up version of the simple Surgeon’s Loop, and it’s perfect when you need a loop that won’t bail on you when things get tense. Like, imagine you’re rigging up a fishing line or securing gear—you want something that won’t slip or unravel the second you put weight on it. That’s where this guy shines.

Here’s how you do it, plain and simple:

  1. Fold your line—take the end of your rope or whatever you’re working with and double it back on itself so you’ve got a nice little U-shape. The longer the folded section, the bigger your loop will be. (Learned that the hard way—first time, my loop was so tiny it was basically useless.)

  2. Tie a simple overhand knot—but here’s the trick: you’re gonna do it with the doubled line. So just make a loop like you’re starting a regular knot, but keep the folded part intact.

  3. Now, here’s the “double” part—instead of pulling it tight right away, pass the folded end through the loop again. Yeah, just like you’re retracing your steps. This is what gives it that extra grip.

  4. Moisten and tighten—if you’re using fishing line or something slippery, a little lick or dab of water helps it cinch down smooth. Then pull everything snug, and boom—you’ve got yourself a rock-solid loop.

I’ve used this knot for everything from securing tent guy lines (because nothing’s worse than your shelter collapsing at 2 AM) to fixing broken shoelaces in a pinch. It’s one of those things that feels like a secret weapon once you get the hang of it.

Oh, and pro tip: if you’re working with super thin or slick material, give it an extra twist before the final tighten. Just adds a bit more friction. But honestly, even if you mess it up, it’s forgiving—unlike, say, a bowline, which will mock you relentlessly if you tie it wrong.

Anyway, next time you need a loop that means business, give this one a shot. It’s not glamorous, but it’s the kind of reliable that makes you feel like you’ve got your life together. Or at least your knots.

Use case: creating a loop

A simple and strong knot used to create a loop at the end of the line. It's a variation of the Surgeon's Knot, but with a loop instead of a straight connection.

Step 1
Form a loop
Form a loop by doubling the line. For the rest of the knot, you keep the two line ends parallel.

Step 2
Make a simple knot
Make a simple knot, keeping the lines and the loop together.

Step 3
Wrap around itself
Make a simple knot again by wrapping the loop around the lines again like you did the first time. Do this one to three times.

Step 4
Pull on both ends to tighten
Pull on both the loop and the other side to tighten the knot, then cut off any excess at the knot.
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