Made to measureIllustration. Yours is cut to this boat’s measurements.Express +8%, economy 5.5% off. Shown as its own line in your cart.
Made to measureIllustration. Yours is cut to this boat’s measurements.Express +8%, economy 5.5% off. Shown as its own line in your cart.
The sock goes in your cart as its own line, linked to this spinnaker.
OSR max 8.6 m²Luff tape relies on a foil, so it does not meet the OSR luff-attachment rule. Choose hanks or wrap luff for offshore racing.
Tell us your track size after you order.
Every Niagara 31 price on one printable page: mainsail and genoa in each cloth, the spinnaker, sock, storm sails and canvas, plus the rig dimensions.
| Measurement | Metres | Feet |
|---|---|---|
| I (fore-triangle height) | 13.11 | 43.0 |
| J (fore-triangle base) | 3.78 | 12.4 |
| P (mainsail luff) | 10.97 | 36.0 |
| E (mainsail foot) | 3.81 | 12.5 |
| Mainsail area | 24.5 m² | 263 ft² |
| Fore-triangle area | 24.8 m² | 267 ft² |
| Length overall (approx.) | 9.45 | 31 |
We confirm your measurements before anything is cut.
From A$2,339.70 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$2,515.70 with 4 full battens. C-Breeze, the long-life cloth, starts at A$3,114.10. Every mainsail is cut to the Niagara 31 rig (P 10.97 m, E 3.81 m) with two reefs.
We build 110% to 150% LP for the standard rig (I 13.11 m, J 3.78 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$2,347.40.
A Size 4 (57 m²) asymmetric suits the Niagara 31 fore-triangle. It starts at A$1,849.10, or A$2,549.80 with a dousing sock.
The Offshore Special Regulations cap a storm jib at 5% of I squared (8.6 m² here) and a trysail at 17.5% of P × E (7.3 m²). That makes our Large (7.5 m²) storm jib and Small (6.1 m²) trysail the right sizes.
Measure I, J, P and E and compare them with the rig table. We confirm every measurement with you before the sail is cut.
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.
