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 Ascender Climbing Rope  Ascender Reel
Ascender Climbing line image

Ascender Climbing line

Ascender Climbing line

Buy Ascender Climbing line

By the Foot

Add a Splice

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

Hand-spliced Tight Eye
Hand-spliced 5” Eye
Hand-spliced Eye - Custom Size
Sewn Tight Eye
Sewn 5” Eye
Sewn Eye - Custom Size

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.)

12mm (1/2”) • 16-strand • 6,800 lb ABS (unspliced) • 2.1% elongation at 10% of ABS • 7.3 lb. per 100’ • Spliceable

Ascender 16-strand climb line is composed of a braided polyester cover over a nylon core, which ensures the rope will not collapse under use. This high-quality line is firm enough for all climbing techniques, low stretch, spliceable, and offers good grip.

WesSpur stocks Ascender in green/white pattern.


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Additional Features

  • Low stretch
  • Maximum firmness
  • Full 1/2” offers easy grip
  • Excellent knot-heat resistance
  • Maintains great service flexibility
  • Spliceable at both ends
  • No milking
  • Class 1 16-strand with core
Manufacturer : Samson
Made in : USA
Diameter : 12mm (1/2”)
Average Strength (Unspliced) : 6,800 lb / 3,100 kg
Construction : 16-Strand
Material : Nylon core, polyester cover
Wt. per 100’/100m : 7.3 lb / 3.3 kg
Elastic Elongation : 2.1% at 10% ABS
Hand Spliceable : Yes
Sewn Spliceable : Yes

Samson Splicing Instructions

Free downloadable PDF for splicing Class-1 16-strand ropes: Download splicing instructions

ANSI Z133-2017

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

Arborist climbing lines 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.

Ascender rope meets ANSI Z133-2017 standards.

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

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