The Round Lashing is a simple lashing knot used to secure two poles or spars to increase their strength or extend their length.
Unlike other lashing methods, it does not use frapping turns. In fact, frapping turns between the parallel poles would only weaken the strength.
It only consists of 8-10 round turns around the poles with a Clove Hitch at both ends.
Let’s learn it in detail.
Round Lashing Details
Type: Lashing Knot
Other Names: Vertical Lashing
ABoK Reference: #2103
Quick Guide
To tie the Round Lashing, start by tying a Clove Hitch around both poles. Then, tie 6-8 wraps around those poles.
Finally, finish off the lashing with another Clove Hitch.
How to Tie the Round Lashing Knot
- Overlap two poles. A good overlap is about one-third of the pole length.
- Tie a Clove Hitch between two poles.
- Wrap 6-8 turns around the poles.
- Tie another Clove Hitch.
Note: The efficiency of the Round Lashing depends on the tightness of the lashing itself.

Security
Since the Round Lashing does not consist of any frapping turns, it can be a bit loose and not as secure as you would like.
To make it tighter, slip in two wedges inside the turns—one above and one below the lashing. Always drive them downward from above.
Another way to increase the security of this lashing is to tie two lashings at a fair distance apart.

Application and Uses
The Round Lashing is used to join two poles together end to end to make it longer.
It’s used in Boy Scout and pioneering applications like extending the length of poles, making a flagpole, and building some structure.
Pros and Cons
Pros
- Simple and easy to tie
- Requires less rope due to lack of frapping turns
Cons
- Does not work well if too many spars are used
- Works well with spars that have a clean and even diameter
Other Similar Lashing Knots
Shear Lashing

The Shear Lashing is used to secure two spars or poles together, particularly to spread the spar legs apart, like creating an A frame.
It starts and ends with the Clove Hitch, just like the Round Lashing, but includes frapping turns between the poles.
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