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Yale Kernmaster 7/16” Rope - Orange/Green

Yale Kernmaster Rope Kernamster Reels Yale Kernmaster Rope
Yale Kernmaster 7/16” Rope image

Yale Kernmaster 7/16” Rope

Buy Yale Kernmaster 7/16” Rope

7/16” x 150’
kn15
7/16” x 200’
kn20
7/16” x 300’
kn30
11mm x 600'**
kn60
By the Foot
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**Reels of rope are charged a flat shipping fee in the continental US. Spools of rope up to 9/16" ship for $25 in areas covered by our free shipping offer. Spools of rope 5/8” and larger ship for $50 in these areas. Regular shipping rates apply in other areas.

Buy Yale Kernmaster 7/16” Rope Spliced

Yale Kernmaster 7/16” Rope with Viking-Spliced Tight-Eye

11mm x 150'
kn15VT
11mm x 200'
kn20VT
11mm x 300'
kn30VT

Yale Kernmaster 7/16” Rope with Viking-Spliced 5" Eye

150'
kn15V5
200'
kn20V5
300'
kn30V5

Additional Splice Options

Add custom-sized eyes, additional eyes, or eyes in bulk rope

Sewn Tight Eye
SPL401
Sewn 5” Eye
SPL402
Sewn Eye - Custom Size
SPL401

Leave instructions for which splices go with which ropes in the 'comments' field during checkout, along with the sizes for any custom size eyes, and any instructions for thimbles, rope snaps, or other hardware to add to the splice. (Hardware must also be present in your cart to add it to the splice.)

11mm (7/16”) • kernmantle • 7,100 lb ABS • 3% elongation at 10% ABS • 5.5 lb per 100' • sewn eyes only.

Kernmaster is a 48-strand Kernmantle rope with an outer polyester jacket over an energy-absorbing nylon core. Kernmaster makes an excellent SRS line. It is very low stretch and works great in all of your favorite Single Rope hardware.

Yale's Kernmaster is a Kernmantle climb line with good energy absorption. The core fibers of Kernmaster are braided, unlike most other kernmasters, which makes it perform more like a 24-strand, allowing for both access and DdRT climbing using quick hitches. The supple hand of Kernmaster works well with hybrid SRT devices like the Hitch Hiker. CE/EN1891 rated.

Quick Overview: 7/16” diameter, 7,100 ABS, 5.5 lb per 100’.

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This Item Ships free!* No-hassle Returns Ask A Question

Video overview of Kernmaster by Niceguydave

Yale Video on Energy Absorption

Additional Features

  • Excellent SRT Rope
  • Professional grade
  • Smooth cover for mechanical ascension
  • Low stretch
  • Tight braid
  • Light weight
Manufacturer : Yale Cordage
Made in : USA
Diameter : 7/16” / 11 mm
Average Strength : 7,100 lb / 3,220 kg
Construction : Kernmantle
Material : Polyester / Nylon Core
Wt. per 100’/100m : 5.5 lb / 8.2 kg
Elastic Elongation : 3% at 10% ABS
Hand Spliceable : No
Sewn Spliceable : Yes

Dynamic Energy in Arborist Rope

This great article at Yale Rope's website explains the how the ability of a rope to absorb impact is affected by the elasticity of the rope. Breaking strength is not the only important factor in determining if a rope is right for the job. Dynamic Energy in Arborist Ropes

ANSI Z133-2017

The American National Standards Institute (ANSI) has released the ANSI Z133 safety requirements which apply to arboriculutral operations.

Arborist Climbing Ropes are required to have a minimum breaking strength of 5,400 lb (24 kN) when new, and should be no smaller than 1/2” (12.7mm) unless the employee has been trained in the use of smaller line (down to 7/16” / 11mm), and the line's working elongation should not exceed 7% at 540 lb load.

Kernmaster 7/16” meets ANSI Z133-2017 standards, so long as the user has been trained in the use of smaller diameter lines.

The full ANSI Z133 safety requirements are available on our tree care standards page.

Customer Reviews

Rated: Excellent Review by: Ken

“Best rope period. Low stretch but good enough to work off single rope, easy on the hands for double rope, super light, firm grip, not slippery and really tough cover. The colors aren't 80s sunglasses flashy and still easy to see in the tree. Wesspur's price is a steal and a smooth setup for any gear with their pro splices.”

Rated: Excellent Review by: Niceguydave

“This rope from Yale has been around for a while. It turns out that it makes an excellent SRT line when using hybrid work systems like the Ropewrench, Unicender, and Hitchhiker. It is a Kernmantle rope that utilizes a braided core instead of the more common parallel strands. It maintains excellent hand, knots well, and doesn't get 'cabled' or stiff like some static lines do when used. It has a Nylon core, which gives it energy absorption. This is an excellent choice for folks who are working a tree using SRT.”

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