Double sheet bend
Bend · moderate · also called Double becket bend

Used for
- Joining lines of very different sizes
- Joining wet or slippery lines, or lines that will carry a heavy strain
- Tying a line to an eye splice more securely than a single sheet bend
How to tie it
- Make a U-shaped bight in the end of the thicker or stiffer line.
- Pass the end of the thinner line up through the bight from underneath.
- Take it around behind both legs of the bight.
- Tuck it under its own standing part.
- Take it around behind the bight a second time, beside the first turn.
- Tuck it under its own standing part again.
- Pull on the thinner line and the bight to tighten.
Check it: Two turns of the thinner line wrap the bight side by side, and both short ends come out on the same side of the knot.
Cautions
- It is still a temporary join; splice if the join is permanent.
- Check it after the lines have been working, slackening and loading, for a while.
To untie: Take the load off, push the ends together and work the turns loose.
Sources (4)
higherlogicdownload.s3.amazonaws.com · media.defense.gov · marines.mil · en.wikipedia.org
General guidance for recreational boaters, researched from the sources listed and written in our own words. Your equipment manuals, local knowledge, the Navigation Rules and a qualified instructor come first.