Shop Line by Diameter, ranging from 1mm to 12mm. Use the DIAMETER filter selection to see available line options in the right diameter for your specific application.
West Coast Sailing carries over 80 different lines from 6 of the best rope manufacturers in diameters ranging from 1mm all the way up to 12mm. Use our handy category filters to narrow in on the specific diameter of lines that work for your application, and then pick the one that meets your exact criteria for performance, color, or price.
Recommended Diameter by Application & Boat Length
|
Application |
Boat Length |
Boat Length 18 - 24 Feet |
Boat Length 24 - 32 Feet |
Boat Length 32 - 38 Feet |
Boat Length 38 - 45 Feet |
Boat Length 45 - 52 Feet |
| Main Halyard | 6mm / 1/4 in | 6mm / 1/4 in | 8mm / 5/16 in | 8mm / 5/16 in | 9mm / 3/8 in | 11mm / 7/16 in |
| Jib/Genoa Halyard | 6mm / 1/4 in | 6mm / 1/4 in | 8mm / 5/16 in | 8mm / 5/16 in | 9mm / 3/8 in | 11mm / 7/16 in |
| Spinnaker Halyard | 6mm / 1/4 in | 6mm / 1/4 in | 8mm / 5/16 in | 9mm / 3/8 in | 9mm / 3/8 in | 11mm / 7/16 in |
| Topping Lift | 6mm / 1/4 in | 6mm / 1/4 in | 8mm / 5/16 in | 9mm / 3/8 in | 9mm / 3/8 in | 11mm / 7/16 in |
| Mainsheet | 8mm / 5/16 in | 9mm / 3/8 in | 9mm / 3/8 in |
9mm / 3/8 in | 11mm / 7/16 in | 12mm / 1/2 in |
| Jib/Genoa Sheet | 6mm / 1/4 in | 8mm / 5/16 in | 9mm / 3/8 in | 9mm / 3/8 in | 11mm / 7/16 in | 12mm / 1/2 in |
| Spinnaker Sheet | 6mm / 1/4 in | 8mm / 5/16 in | 8mm / 5/16 in | 8mm / 5/16 in | 9mm / 3/8 in | 9mm / 3/8 in |
| Tack Line | 5mm / 3/16 in | 6mm / 1/4 in | 9mm / 3/8 in | 9mm / 3/8 in | 9mm / 3/8 in | 11mm / 7/16 in |
|
MM to Inch |
1mm = 3/64 inch | 2mm = 5/64 inch | 3mm = 1/8 inch | 4mm = 5/32 inch | 5mm = 3/16 inch | 6mm = 1/4 inch |
| 7mm = 9/32 inch | 8mm = 5/16 inch | 9mm = 3/8 inch | 10mm = 25/64 inch | 11mm = 7/16 inch | 12mm = 1/2 inch | |