Made to measureIllustration. Yours is cut to this boat’s measurements.Cloth
Battens
Build time
Express +8%, economy 5.5% off. Shown as its own line in your cart.
A$3,668.50
inc GST
CT 37 Sails Prices, sail sizes & rig dimensions
8 products cut or sized for this boatI 15.48 · J 5.94 · P 13.41 · E 4.66 mPrices checked 21 Oct 2026
Made to measureIllustration. Yours is cut to this boat’s measurements.
Made to measureIllustration. Yours is cut to this boat’s measurements.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$5,509.90
inc GST
Sized for this boatRacing with a pole? Symmetric spinnakers from A$1,448.70
Asymmetric spinnaker
Asymmetric Spinnaker · Size 9 (106 m²)
Matched to the CT 37 fore-triangle · 1.5 oz nylon · 11 colours
Spinnaker cloth colour: White
Sock outer tube
Sock inner tube
The sock goes in your cart as its own line, linked to this spinnaker.
A$3,036
inc GST
Fits the Size 9 spinnaker
Dousing sock
Spinnaker Dousing Sock · 15.5 m
UV-resistant ripstop nylon sock to hoist and douse the spinnaker from the deck
Outer tube
Inner tube
A$980.10
inc GST
OSR max 12.0 m²Storm jib
Storm Jib · Extra Large (9.5 m²)
Storm orange Dacron · World Sailing OSR 4.26 sizing for this rig
Luff attachment
Luff tape relies on a foil, so it does not meet the OSR luff-attachment rule. Choose hanks or wrap luff for offshore racing.
A$1,135.20
inc GST
OSR max 10.9 m²
Luff hardware
Tell us your track size after you order.
A$1,250.70
inc GST
Fits a 4.66 m boom
Canvas
Colour
A$598.40
inc GST
Fits a 4.66 m boom
Canvas
Lazy jacks
Colour
A$1,122
inc GST
Get the price list
Every CT 37 price on one printable page: mainsail and genoa in each cloth, the spinnaker, sock, storm sails and canvas, plus the rig dimensions.
Not ready to buy yet?
CT 37 rig dimensions
| Measurement | Metres | Feet |
|---|---|---|
| I (fore-triangle height) | 15.48 | 50.8 |
| J (fore-triangle base) | 5.94 | 19.5 |
| P (mainsail luff) | 13.41 | 44.0 |
| E (mainsail foot) | 4.66 | 15.3 |
| Mainsail area | 36.6 m² | 394 ft² |
| Fore-triangle area | 46.0 m² | 495 ft² |
| Length overall (approx.) | 11.28 | 37 |
We confirm your measurements before anything is cut.
CT 37 sails: questions
How much is a new mainsail for a CT 37?
From A$3,668.50 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$3,880.80 with 4 full battens. C-Breeze, the long-life cloth, starts at A$4,717.90. Every mainsail is cut to the CT 37 rig (P 13.41 m, E 4.66 m) with two reefs.
What size genoa does a CT 37 need?
We build 110% to 150% LP for the standard rig (I 15.48 m, J 5.94 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$4,662.90.
What size spinnaker fits a CT 37?
A Size 9 (106 m²) asymmetric suits the CT 37 fore-triangle. It starts at A$3,036, or A$4,016.10 with a dousing sock.
What size storm jib and trysail fit a CT 37?
The Offshore Special Regulations cap a storm jib at 5% of I squared (12.0 m² here) and a trysail at 17.5% of P × E (10.9 m²). That makes our Extra Large (9.5 m²) storm jib and Large (10.8 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.
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.