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Welcome to Animated Knots by Grog

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Grog's Arborist Knots

Instructions: Move the mouse over each knot. Look at the description to find out what it can be used for. Click on the knot you wish to see. On the new page wait until the selected knot starts to tie itself.

Picture of Arborist Knots
Arborist Knots

Arborist Knots

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 ablity to create a closed ring, and the Sliding Double Fisherman's because it is an interesting modification of a Prusik Loop.

Jepson's Double Fisherman's Loop was described by Ashley as the Poacher's Knot – and that name is retained here. The Yosemite Tie Off does not have its own page but is described on the Bowline page


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

Make a selection from the images above or go to the Options Page.

Disclaimer: Any activity that involves ropes is potentially hazardous. Lives may be at risk - possibly your own. Considerable attention and effort have been made to ensure that these descriptions are accurate. However, many critical factors cannot be controlled, including: the choice of materials; the age, size, and condition of ropes; and the accuracy with which these descriptions have been followed. No responsibility is accepted for incidents arising from the use of this material.

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Version 8.2
August 8, 2018