The Shear Lashing (also spelled "Sheer Lashing") is used to lash the ends of two poles together. The other ends are separated to make a pair of Shear Legs. This Lashing is widely spelled both "Shear" and "Sheer", and is also called Shear Lashing Mk1, with Shear Lashing Mk2 referring to the Round lashing.
- The two poles are laid side-by-side and an initial Clove Hitch is tied round one pole.
- Wrap both poles with a simple round lashing.
- Wrap the lashing with a two or three tight frapping turns. It is sometimes necessary to spread the legs apart to open up the poles to make it easier.
- Tie off the end with a clove hitch.
- The other ends of the poles are then separated to make a pair of Shear Legs.
Shear legs support weight. A single pair can be controlled with a rope as they lean over a stream to lift a bucket. A series of them can support an aerial walkway.