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Anchor Rope

Twisted 3-strand white Nylon anchor rope and line. Sold by the metre with option to add hard eye splice at one end, and soft eye splice at the other end. Available from 10mm – 36mm diameters.

Nylon anchor rope is one of the most popular solutions for marine anchor lines thanks to its superior strength, stretch and shock absorbency. When in water, Nylon rope sinks, thereby avoiding other craft in crowded anchorages.

Suitable for boats, yachts, kayaks and jet-skis.

Key properties at a glance: 

  • Superior tensile strength
  • High shock absorption and elasticity
  • Excellent abrasion resistance 
  • Sinks
  • Good UV stability
  • Easy to splice
  • Made in Europe

Related: Nylon, Splicing, Thimbles, Polyester, Leaded Polysteel

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Anchor Rope Technical Details

Diameter / Weight / Break load 

DiameterWeight per 220m (kg)Break load (kg)*
6mm4.5809
8mm8.21,408
10mm12.52,162
12mm183,070
14mm254,080
16mm325,294
18mm406,559
20mm508,078
22mm619,588
24mm7311,424
28mm9915,198
32mm12919,584
36mm16324,480

*Break load for indication purposes only. Not test certified. Break loads will also lower as a result of splicing and knotting.

 

Which diameter should you choose?

As a general guide, you need approx 0.125″ (or 1/8″) of rope diameter for every 9 feet of boat. That’s 3.175mm for every 2.74m of boat.

(Note: when ordering anchor rope, bigger is normally better.)

To calculate the diameter: Boat Length (ft) ÷ 9 (ft) x 0.125 (inch) = Dia. (inch)

E.g.: for a 30ft boat: 30 ÷ 9 x 0.125 = 0.4″ (or 3/8″ )

The following table converts and then rounds up to the nearest diameters in mm.

Boat Length (ft)Diameter (inches)Diameter (mm)
90.125 (1/8″)4mm
100.14 (1/8″)4mm
150.21 (2/8″)6mm
200.28 (2/8″)8mm
300.42 (3/8″)12mm
400.56 (4/8″) 14mm
500.69 (6/8″)18mm
600.83 (7/8″)22mm
700.97 (8/8″)26mm
901.25 (1 & 2/8″)32mm
1001.39 (1 & 3/8)36mm

 

How much rope do you need?

As a guide you should allow 8ft of line for every 1ft of water that you will be anchoring in as follows:

Anchorage Depth (ft)Length (ft)Length (m)
54012
1512037
2016049
2520061
30240 73
3528085
4032098

 

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