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Welcome to Arborist Knots
These animated knots are for arborists and other tree-climbers. This selection is based on consultation with tree climbers and, in particular, Jeff Jepson's books for Arborists1,2. The knots in the section are based on Jepson's "Must Know" list, but we also included the Beer Knot because of its unique ability to create a closed ring, and the Sliding Double Fisherman's because it is an interesting modification of a Prusik Loop.
Working on trees high above ground is hazardous. Arborists have a fatal accident rate about ten times the average for all industries, a rate that is exceeded only by the logging industry whose rate is thirty times the average.3,4
Learn Your Knots: The Life They Save May Be Your Own
1. The Tree Climber's Companion. Jeff Jepson. Beaver Tree Publishing. 2000.
2. Knots at Work. Jeff Jepson. Beaver Tree Publishing. 2013.
3. Tree Care Industry: Lessons Learned from Accident Research.
4. CDC Report: Work-Related Fatalities Associated with Tree Care Operations --- United States, 1992--2007
Which Knot Should I Use?
Attach Device to Tree Trunk
Lowering device or pulley to tree
Attach Rope to Object
Reliable attachment to carabiner
Add to other knots for safety
Knot for controlled descent (or ascent)
Coil Rope to Prevent Tangle
Obtain Additional Purchase
Obtain extra force using rope tackle
Secure knot to create webbing sling