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Welcome to SHERRILLtree's Learning Center!

Here you will find vital information on Tree Climbing & Tree Rigging. Learn how to tie knots, choose the right chainsaw for the job, Ddrt technique, tree health, rope maintenance, gear inspection and so much more! If you don't see information on a topic that you are interested in let us know! Email us at info@sherrilltree.com with the title Learning Center Topics and we will get the info that you need. Climb Safe!
2018 Vermeer Seminar Schedule

2018 Vermeer Seminar Schedule

Make plans to join us for a day of expert instruction and demonstrations along with a review of the latest tools and equipment. Certified arborists receive 6.5 ISA and TCIA CTSP... read more

 

Learning Center

Bowline Knots

Bowline, Bowline Running & Bowline with a Yosimite Tie Off. The Bowline holds tight during extreme situations, yet unties with minimal effort. Used mostly in rigging situations this quickly tied and untied knot is perhaps our most important to...

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Blake's Hitch

Back in the 90's a California climber named Jason Blake developed the knot that would eventually replace most use of the Taut Line Hitch among tree climbers. The Blake's Hitch has significantly less tendence to "roll out" or otherwise unravel.

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Better Bow Knot

Better because it really works! Simply take an extra turn around the bow when tying your shoes and pull tight. The added friction keeps even the spongy laces from coming untied.

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Gear Inspection

Gear should be inspected before and after each use, according to the manufacturers’ directions. Pay particular attention to cracks on surfaces of ascenders, sharp edges on cams, worn places in harnesses, and cuts in rope.

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Doubled Rope Technique - DdRT

DdRT - (not to be confused with a double rope technique (drt), a rock climber's term when using two independent ropes at one time.) Tree climbing's doubled rope technique is unlike most other rope-assisted activities in that you use a loop of rope...

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Climbing Emergency Preparedness

Being prepared for the worst has to do with the inherent nature of trees. A lot of what we sell has a stamp on it, to show how it is rated. A carabiner, for example, has a mark on it that says what its rated tensile strength is when new.

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Chainsaw Safety & Selection

The proper size and type of saw depends on the nature of the work that you are doing. Are you pruning small, or large branches? Are you working from an aerial device, climbing, working from the ground? Are you removing a tree; in sections aloft or...

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RopeLogic

Rope splicing is the art of manipulating rope strands to create a semi-permanent joint between two parts, commonly in the form of a fixed eyelet for attaching hardware. The alternative knot-tied eyelet is not only bulkier but reduces the ropes ten...

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Rope Care

Samson has released an excellent article on Rope Selection, Rope Usage and Rope Retirement and can be found here: 

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Tree Climbing

Before climbing a tree, it is imperative that you closely examine your targeted tree for dead hanging branches and other potential hazards!

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