The first knot as the name implies is a basic figure eight knot.
Strongest knot for joining two ropes.
Do you want an extremely secure knot won t slip or come untied.
Do you want a knot that you will be able to untie after you have put a big load on the ropes.
Use a double fisherman knot to join ropes of unequal diameter for multi abseil descents.
Bends are knots to tie two ropes together.
For joining two lines together it would be best to use a flat seizing knot.
But if you need to join two different materials or different sizes of rope then the sheet bend is your best bet you can use th.
If you re joining two ropes of different diameters the sheet bend knot is going to work much better than the square knot would.
This knot is used to bind two lines of similar size together and never let go.
A straight rope has a breaking strength.
The double fisherman s it a much better choice for joining two ropes.
If you are using two ropes as a fixed line first join them with a double fisherman knot and then tie an alpine butterfly knot that incorporates the double fisherman knot in the loop.
Then thread the tail of the thinner rope through the loop.
Adding tension along the axis will eventually break the rope.
I would agree the figure 8 is certainly the most common and very strong for equally sized ropes in identical materials.
The sheet bend is similar to the square knot it s great for joining two ropes.
Take the thicker of the ropes and create a loop.
This means that the rope is unlikely to break while you re using it.
Best depends on what your objectives are.
Tying three of these knots in succession will provide a permanent junction that will hold the lines together and evenly distribute the forces over the length of the seizes providing you.
This is one of the strongest knots you can tie and it maintains up to 85 percent of the rope s strength.
Here is a selection of knots for joining ropes and also some knots where the rope is tied upon itself such as the heaving line knot and the sheep shank the water knot is an excellent knot for use with flat webbing material.