The tensioning knot is less well known than many other popular marine knots, but it should be one that every keen boater learns and knows. This knot can be very useful for many different things and has saved countless people from sticky or dangerous situations because it is fast to tie and very reliable for when tentioning is required.
This knot can also be a fast alternative to the truckers knot for when speed is needed or the rope is too short. This knot can be used for anything from tying down the boat on the trailer to fast locking off the rope on a boat where tensioning is needed.
I found a great little video showing the process for tying this knot, which is easy to follow and should have you tying like a professional in no time!