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Seidelmann 37 (short mast) Sails Prices, sail sizes & rig dimensions

8 products cut or sized for this boatI 14.17 · J 4.66 · P 12.80 · E 3.35 mPrices checked 22 Oct 2026

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Every Seidelmann 37 (short mast) price in your inbox: mainsail and genoa in each cloth, the spinnaker, sock, storm sails and canvas, plus the rig dimensions.

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Illustration of a Seidelmann 37 (short mast) cruising mainsail from Sails.Online: cross-cut Dimension-Polyant woven Dacron, 3 leech battens and 1 full-length head batten, 2 reefsMade to measureIllustration. Yours is cut to this boat’s measurements.
Mainsail · cut to your rig

Seidelmann 37 (short mast) Mainsail

25.1 m² · P 12.80 m, E 3.35 m · Dimension-Polyant cloth
Cloth
Battens
Build time

Express +8%, economy 5.5% off. Shown as its own line in your cart.

A$2,629
inc GST
Illustration of a Seidelmann 37 (short mast) 130% furling genoa from Sails.Online with a Captain Navy Sunbrella UV cover: cross-cut Dimension-Polyant woven DacronMade to measureIllustration. Yours is cut to this boat’s measurements.
Furling genoa · cut to your rig

Seidelmann 37 (short mast) Furling Genoa

I 14.17 m, J 4.66 m · UV cover included
Cloth
Size (LP)
UV cover colour: Captain Navy
Build time

Express +8%, economy 5.5% off. Shown as its own line in your cart.

A$3,956.70
inc GST
Sized for this boat
Asymmetric spinnaker

Asymmetric Spinnaker · Size 7 (83 m²)

Matched to the Seidelmann 37 (short mast) fore-triangle · 1.5 oz nylon · 11 colours
Spinnaker cloth colour: White
A$2,352.90
inc GST
Racing with a pole? Symmetric spinnakers from A$1,448.70
Fits the Size 7 spinnaker
Dousing sock

Spinnaker Dousing Sock · 13.8 m

UV-resistant ripstop nylon sock to hoist and douse the spinnaker from the deck
Outer tube
Inner tube
A$874.50
inc GST
Storm jib in storm orange DacronOSR max 10.0 m²
Storm jib

Storm Jib · Extra Large (9.5 m²)

Storm orange Dacron · World Sailing OSR 4.26 sizing for this rig
Luff attachment
A$1,135.20
inc GST
OSR max 7.5 m²
Storm trysail

Storm Trysail · Small (6.1 m²)

Storm orange Dacron · no headboard or battens
Luff hardware
A$713.90
inc GST
Fits a 3.35 m boom
Boom cover

Boom Cover · 3.0–3.5 m

Zip at the mast, straps under the boom · 7 colours
Canvas
Colour
A$419.10
inc GST
Fits a 3.35 m boom
Stackpack

Stackpack (Lazy Bag) · 3.1–3.6 m

Battened sides, zipped top · 7 colours
Canvas
Lazy jacks
Colour
A$816.20
inc GST

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Seidelmann 37 (short mast) rig dimensions

MeasurementMetresFeet
I (fore-triangle height)14.1746.5
J (fore-triangle base)4.6615.3
P (mainsail luff)12.8042.0
E (mainsail foot)3.3511.0
Mainsail area25.1 m²270 ft²
Fore-triangle area33.0 m²356 ft²
Length overall (approx.)11.2837

We confirm your measurements before anything is cut.

Seidelmann 37 (short mast) sails: questions

How much is a new mainsail for a Seidelmann 37 (short mast)?

From A$2,629 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$2,786.30 with 4 full battens. C-Breeze, the long-life cloth, starts at A$3,348.40. Every mainsail is cut to the Seidelmann 37 (short mast) rig (P 12.80 m, E 3.35 m) with two reefs.

What size genoa does a Seidelmann 37 (short mast) need?

We build 110% to 150% LP for the standard rig (I 14.17 m, J 4.66 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$3,348.40.

What size spinnaker fits a Seidelmann 37 (short mast)?

A Size 7 (83 m²) asymmetric suits the Seidelmann 37 (short mast) fore-triangle. It starts at A$2,352.90, or A$3,227.40 with a dousing sock.

What size storm jib and trysail fit a Seidelmann 37 (short mast)?

The Offshore Special Regulations cap a storm jib at 5% of I squared (10.0 m² here) and a trysail at 17.5% of P × E (7.5 m²). That makes our Extra Large (9.5 m²) storm jib and Small (6.1 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.

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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