Knots at Work: A Field Guide for the Modern Arborist

Knots at Work: A Field Guide for the Modern Arborist covers the knots and hitches tree workers tie for climbing, rigging and everyday ground work. It is a handy reference for new climbers and a refresher for crew leaders training others.

What the guide covers

Every tree job runs on a short list of knots: a bowline or running bowline for rigging, a clove hitch and half hitches for tying off, stopper knots, and friction hitches for climbing. A field guide puts them in one place so a new hire can study on the ride to the job and a crew leader can check a detail before teaching it.

A good way to use it is to pick one knot a week, tie it on every job, and talk through when it is the right choice. Ground workers who know their knots make rigging safer and faster, because the climber can call for a hitch and trust that it will be tied and dressed correctly. Keep the guide in the truck where the crew can find it.

Pair it with hands-on practice and the rest of our books and training materials for a fuller picture of climbing and rigging.

Learning knots the right way

Tie each knot until you can dress and set it with your eyes closed, then have an experienced climber check it. A knot that looks right in a picture can still be tied wrong, and a poorly dressed hitch can slip.

A book is no substitute for training. Learn life-support knots under supervision, follow ANSI Z133 and your employer's procedures, and always check your system before you leave the ground.