Wire & Pin Diameters for Headsail Furlers

What size furler do I need?

When sizing furlers, your boat length and sail area are very helpful for approximate sizing. Your headstay is the structural member in the system, sized by naval architects and riggers, and both Facnor and Profurl furlers are designed and built with this in mind. Although the boat's length and sail area can help you get started, knowing the headstay's pin size, wire diameter, and overall length are the absolute best measurements to choose the correct size for your headsail furler.

The table below specifies the wire and pin diameters that are compatible with headsail furlers from both Facnor (LS Furlers & FlatDeck Furlers) and Profurl (C-Series Furlers).

The three key measurements included in the table are:

Max wire diameter: the outside diameter of your forestay wire
Supplied pin diameter: the clevis pin size at the upper (masthead) and lower (tack) terminations
System LOA (Length Overall): the full length of the furler system from drum to swivel

LS Series

View Range →

Model	Suggested Max Boat	Max Wire Diameter	Supplied Pin Diameter	System LOA
LS60	7M	5MM	8MM	7M
LS70	8M	5MM	8MM	8M
LS100	9M	6MM	10MM	10M
LS130	11M	7MM	12MM	12M
LS165	12M	8MM	12MM	14M
LS180	13M	10MM	16MM	14M
LS200	14M	10MM	16MM	16M
LS290	18M	12MM	18MM	18M
LS330	28M	16MM	25MM	26M

FlatDeck Series

View Range →

Model	Suggested Max Boat	Max Wire Diameter	Supplied Pin Diameter	System LOA
FD110	9M	7MM	10MM	10M
FD190	12M	8MM	12MM	14M
FD230	13M	10MM	16MM	16M
FD310	18M	12.7MM	19MM	18M

C-Series

View Range →

Model	Suggested Max Boat	Max Wire Diameter	Supplied Pin Diameter	System LOA
C290	9.5M	6MM	10MM	12M
C320	11M	7MM	12MM	14M
C350	12.5M	8MM	12MM	16M
C420	14M	10MM	16MM	18M
C430	16M	12MM	19MM	18M
C480	16.5M	14MM	19MM	20M
C520	18M	16MM	19MM	20M
C530	26M+	19MM	22MM	22M

Still have questions?

We understand every situation and setup is unique, and encourage you to speak to a professional to discuss in detail. Contact us today and our team will be happy to answer any questions you may have. Happy sailing!

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Wire & Pin Diameters for Headsail Furlers