The right size Dockline for your boat

January 18, 2017

Adequate size docklines for the size of your vessel.

Adequate size docklines for you boat is especially important in bad weather. When leaving your boat on the dock, make sure your boat is protected from coming adrift.

MINIMUM MOORING LINE STANDARD

Yacht Size (overall length)	Primary Line Size (diameter)	Spring Line Size (diameter)
Up to 23 ft	3/8”	3/8”
24 ft to 32 ft	½”	½”
33 ft to 42 ft	5/8”	½”
43 ft to 51 ft	¾”	¾”
Over 51 ft	1”	1”

Use only 3-strand twisted or braided nylon (no polypropylene or manila).

Chafe gear for you dock line – water hose, clear vinyl tubing, sewn on leather (tape is not effective).

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