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Swanson 42 Sails Prices, sail sizes & rig dimensions

Every sail and cover on this page is cut or sized for the Swanson 42, at a fixed published price. Mainsails and genoas are cut in Dimension-Polyant Dacron, and we check your measurements with you before anything is cut.

I 15.42 · J 5.26 · P 13.41 · E 4.42 mPrices checked 22 Oct 2026See the rig table

The working sails

Illustration of a Swanson 42 cruising mainsail from Sails.Online: cross-cut Dimension-Polyant woven Dacron, 3 leech battens and 1 full-length head batten, 2 reefsIllustration. Yours is cut to this boat’s measurements.
Mainsail · cut to your rig

Swanson 42 Mainsail

A 34.7 m² cross-cut Dacron mainsail, cut to the 13.41 m luff and 4.42 m foot, with two reefs. Three leech battens and a full head batten as standard, or four full battens if you want it to stack neatly on the boom.

You choose: cloth (Optimum Cruise or C-Breeze), battens, build time.

FromA$3,743.30inc GST
See options & order →
Illustration of a Swanson 42 130% furling genoa from Sails.Online with a Captain Navy Sunbrella UV cover: cross-cut Dimension-Polyant woven DacronIllustration. Yours is cut to this boat’s measurements.
Furling genoa · cut to your rig

Swanson 42 Furling Genoa

Cut for the 15.42 m × 5.26 m fore-triangle, with a Sunbrella UV cover sewn in V138 thread. Pick 110% LP for a breezy home port, up to 150% for light-air sailing.

You choose: cloth (Optimum Cruise or C-Breeze), size (110%–150% LP), UV cover colour, build time.

FromA$4,373.60inc GST
See options & order →

Complete the wardrobe

Each one is matched to the Swanson 42. The link opens it with the right size selected.

Racing with a pole? Symmetric spinnakers from A$1,448.70

Real Dimension-Polyant clothNamed, woven Dacron from one of the world’s big sailcloth makers, not generic cloth.
Measurements checked firstA sailmaker confirms your rig with you before the sail is cut.
12-month warrantyAn Australian company, covered by Australian Consumer Law.
Delivered worldwideWe have been shipping sails around the world for years.

Email me the price list

Every Swanson 42 price in your inbox: mainsail and genoa in each cloth, the spinnaker, sock, storm sails and canvas, plus the rig dimensions.

We email you the full price list and keep your details to answer questions about your boat. Privacy

Not ready to buy yet?

Swanson 42 rig dimensions

MeasurementMetresFeet
I (fore-triangle height)15.4250.6
J (fore-triangle base)5.2617.3
P (mainsail luff)13.4144.0
E (mainsail foot)4.4214.5
Mainsail area34.7 m²373 ft²
Fore-triangle area40.5 m²436 ft²
Length overall (approx.)12.8042

We confirm your measurements before anything is cut. Different numbers on your boat? Ask us and we will price it to your rig.

Swanson 42 sails: questions

How much is a new mainsail for a Swanson 42?

From A$3,743.30 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$3,944.60 with 4 full battens. C-Breeze, the long-life cloth, starts at A$4,907.10. Every mainsail is cut to the Swanson 42 rig (P 13.41 m, E 4.42 m) with two reefs.

What size genoa does a Swanson 42 need?

We build 110% to 150% LP for the standard rig (I 15.42 m, J 5.26 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$4,373.60.

What size spinnaker fits a Swanson 42?

A Size 8 (94 m²) asymmetric suits the Swanson 42 fore-triangle. It starts at A$2,656.50, or A$3,602.50 with a dousing sock.

What size storm jib and trysail fit a Swanson 42?

The Offshore Special Regulations cap a storm jib at 5% of I squared (11.9 m² here) and a trysail at 17.5% of P × E (10.4 m²). That makes our Extra Large (9.5 m²) storm jib and Medium (7.8 m²) trysail the right sizes.

How do I check my boat matches these measurements?

Measure I, J, P and E and compare them with the rig table. We confirm every measurement with you before the sail is cut.

Still have a question? Ask a sailmaker

From the same loft

Racing offshore or heading somewhere remote?

For a race programme, a Sydney to Hobart or a bluewater expedition, our sister loft Kraken Sails designs laminates, membrane sails and storm wardrobes for the hard end of sailing.

Race & bluewater sails at Kraken Sails
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