Canadian Jam Knot

( Jam Knot | Canadian Jam )

Animation: Canadian Jam Knot

Usage

The Canadian Jam Knot is a practical, easy-to-tie knot renowned for its secure hold under tension, making it popular in outdoor and survival contexts such as securing tarps, shelters, bed rolls, and bundles. It can be easily adjusted to create tension, and once tightened, it holds firmly. The Canadian Jam Knot 'jams' or locks into place when tightened under load and acts similar to a ratchet strap. It is typically tied by creating an Overhand Knot in the rope and passing the working end through the Overhand to form a slip knot. When tension is applied, the knot tightens and effectively locks, making it useful for binding and securing objects.

History

The origins of the name "Canadian Jam Knot" are not well documented and it is unknown who first coined the term or when it came into widespread use. The name likely reflects the knot’s popularity and usage in Canada, particularly among outdoor communities such as hunters, trappers, and survivalists.

Also known as

  • Jam Knot
  • Canadian Jam

Structure

The Canadian Jam Knot is constructed using two overhand knots, with the working end of the rope passing through the center of one of them to create a loop. The second overhand knot then jams against the first, providing the knot with its secure locking feature. Structurally, the Canadian Jam Knot is identical to the Arbor Knot, commonly used to attach fishing line to a reel.

Strength/Reliability

The Canadian Jam tightens when load is applied, making it very secure. Once jammed, it is difficult for the knot to slip. Before fully tightening, the knot can be easily adjusted, allowing the user to make quick modifications to the tension or length of the line.