Rope Size Guide

Below is a basic guide on rope sizes to help those with less experience select the most suitable diameter rope. If you are not sure, feel free to get in touch, we are happy to help.

Guide to suitable rope diameter sizes in mm
KEEL BOATS
YACHT LENGTH METRES:
6-8
9
10
11
12
14
16
18
Main Sheet
10
10
10
12
12
12
14
16
Genoa Sheet
10
10
12
12
14
14
16
16
Spinnaker Sheet
8
10
10
10
12
12
12
14
Spinnaker Guy
10
10
12
12
12
14
14
16
Main Halyard
8
10
10
10
12
12
12
14
Genoa Halyard
8
10
10
12
12
12
14
16
Spinnaker Halyard
8
8
10
10
12
12
12
14
YACHT WEIGHT TONNES:
2
4
5
6.5
8
11
12
20
Mooring Warps Polyester
8-10
12
12
14
14
16
18
24
Mooring Warps Polypropylene
10-12
14
14
16
18
20
24
24
Anchor Warps Nylon
12
14
16
16
18
20
24
24
Anchor Warps Polyester
14
16
18
18
20
24
24
24
DINGHIES

SHEETS
HALYARDS
CONTROL LINES
Main
8-10
6
6-8
Jib
8-10
6
6-8
Spinnaker
6
4
4-6