Prusik Loops

Prusik loops are closed loops of cord, either sewn or tied, that arborists use to tie friction hitches around rope. They serve as backups, rope grabs for rigging hauls, and handy attachment points around the job.

Uses on a tree job

A prusik loop is a basic tool. Tie a prusik onto a rigging line to make a haul grab, use one as a backup on a lowering system, or clip gear to it. Climbers also use loops as part of rescue and progress-capture setups.

Match the loop's cord diameter to the rope: too thin and it grabs too hard; too thick and it slips.

Keep a few loops in different diameters so you always have one that fits the rope you are using.

Sewn loops are compact and consistent, while tied loops can be retied to adjust length. Both work well for rigging grabs when sized correctly.

Life support or not

Only loops rated and marked for life support should ever be used to hold a person. If you use one in a climbing system, use it only as part of a system that meets ANSI Z133 and the manufacturer's instructions, inspect it before every use, and get trained before you rely on it.

Replace loops that are glazed, stiff, fuzzed or worn. See hitch cords and eye-to-eyes in our hitch cord and split tails section.

Inspect any sewn bartacks closely for cut or pulled stitching, and check tied loops for a secure, well-dressed knot with long enough tails.