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:Â
- Superior tensile strength
- High shock absorption and elasticity
- Excellent abrasion resistanceÂ
- Sinks
- Good UV stability
- Easy to splice
- Made in Europe
Related: Nylon, Splicing, Thimbles, Polyester, Leaded Polysteel
Anchor Rope Technical Details
Diameter / Weight / Break loadÂ
Diameter | Weight per 220m (kg) | Break load (kg)* |
6mm | 4.5 | 809 |
8mm | 8.2 | 1,408 |
10mm | 12.5 | 2,162 |
12mm | 18 | 3,070 |
14mm | 25 | 4,080 |
16mm | 32 | 5,294 |
18mm | 40 | 6,559 |
20mm | 50 | 8,078 |
22mm | 61 | 9,588 |
24mm | 73 | 11,424 |
28mm | 99 | 15,198 |
32mm | 129 | 19,584 |
36mm | 163 | 24,480 |
*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) |
9 | 0.125 (1/8″) | 4mm |
10 | 0.14 (1/8″) | 4mm |
15 | 0.21 (2/8″) | 6mm |
20 | 0.28 (2/8″) | 8mm |
30 | 0.42 (3/8″) | 12mm |
40 | 0.56 (4/8″)Â | 14mm |
50 | 0.69 (6/8″) | 18mm |
60 | 0.83 (7/8″) | 22mm |
70 | 0.97 (8/8″) | 26mm |
90 | 1.25 (1 & 2/8″) | 32mm |
100 | 1.39 (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) |
5 | 40 | 12 |
15 | 120 | 37 |
20 | 160 | 49 |
25 | 200 | 61 |
30 | 240Â | 73 |
35 | 280 | 85 |
40 | 320 | 98 |