A new made to measure mainsail for a 21 ft sailboat costs about A$1,914 including GST (US$1,105), and a 130% furling genoa about A$1,507 including GST (US$870). These are the median prices across 55 boat models of 21 ft, in Dimension-Polyant Optimum Cruise sailcloth.
Prices checked 10 November 2026. A$ prices include GST. US$ prices apply in the US and every other country, before local taxes and duties.
New sail prices for a 21 ft sailboat
| Sail | Optimum Cruise (value) | C-Breeze (long life) |
|---|---|---|
| Mainsail, full battens | A$1,914 / US$1,105Most boats A$1,712 to A$2,094 | A$2,074 / US$1,195Most boats A$1,846 to A$2,285 |
| Furling genoa, 130% | A$1,507 / US$870Most boats A$1,284 to A$1,707 | A$1,645 / US$950Most boats A$1,394 to A$1,870 |
| Mainsail + genoa | A$3,410 / US$1,970Most boats A$3,137 to A$3,710 | A$3,713 / US$2,140Most boats A$3,399 to A$4,041 |
Median price across 55 boat models of 21 ft. "Most boats" is the middle 80%. Standard build of about 4 weeks. Shipping, and import duty for the US, are added at checkout.
Prices for popular 21 ft sailboats
Exact prices for 21 footers. Click through to choose your sailcloth, battens, genoa size and build time.
| Boat | Mainsail | 130% genoa |
|---|---|---|
| Beneteau First 21 | A$2,013 / US$1,160 | A$1,579 / US$915 |
| Jeanneau Sun 2000 | A$1,997 / US$1,150 | A$1,507 / US$870 |
| Pearson 21 | A$1,920 / US$1,110 | A$1,491 / US$865 |
| Dehler Delanta 80 | A$2,074 / US$1,195 | A$1,799 / US$1,040 |
| Etap 21i | A$2,195 / US$1,265 | A$1,282 / US$745 |
| Islander 21 | A$1,892 / US$1,090 | A$1,485 / US$860 |
| Cal 21 | A$1,738 / US$1,000 | A$1,441 / US$835 |
| Admiral 21 | A$1,617 / US$935 | A$1,474 / US$855 |
| Albin Viggen 1 | A$1,749 / US$1,010 | A$1,683 / US$970 |
| American 21 | A$1,656 / US$955 | A$1,529 / US$885 |
Optimum Cruise sailcloth, full batten mainsail, standard build.
What sets the price
Sail area. Price follows the size of the sail, which comes from your boat's rig (I, J, P and E). A typical 21 footer carries about 12.5 m² of mainsail and 12.5 m² of 130% genoa.
Sailcloth. Both cloths are woven polyester (Dacron) from Dimension-Polyant, the German sailcloth maker. Optimum Cruise is the value choice for coastal and weekend cruising. C-Breeze is a tighter weave that resists stretch and holds its shape for longer, for sails that work hard or go offshore. At 21 ft we use Optimum Cruise 248 OC (6 oz) or C-Breeze 241 CB (5 oz).
Battens. Full battens (4) hold the sail's shape and help it last. The 3 leech + 1 full head batten option costs a little less.
Genoa size. We make furling genoas from 110% to 150%. Most cruising boats carry about 130%; a smaller genoa costs less.
Build time. Standard is about 4 weeks. Express (about 2 weeks) adds 8%; economy (about 8 weeks) takes 5.5% off.
What's included
Mainsail: cloth weight matched to your boat, two reef points with low friction rings, cunningham, stacked reinforcement patches, Dyneema leech and foot lines, battens, sail bag and a 12-month warranty.
Furling genoa: Sunbrella UV cover on the leech and foot in your choice of colour, foam luff pad, luff tape to suit your furler, stacked reinforcement patches, sail bag and a 12-month warranty.
After you order, a sailmaker checks your measurements before anything is cut. If your numbers change the price, we tell you first and you can cancel for a full refund.
Questions
How much does a new mainsail cost for a 21 ft sailboat?
A made to measure cruising mainsail for a 21 ft sailboat costs about A$1,914 including GST (US$1,105) in Dimension-Polyant Optimum Cruise with full battens. That is the median across 55 boat models of 21 ft; most fall between A$1,712 and A$2,094. In the longer lasting C-Breeze cloth the median is A$2,074 including GST (US$1,195). A main with 3 leech battens and a full head batten costs a little less than one with 4 full battens.
How much does a new genoa cost for a 21 ft sailboat?
A 130% furling genoa for a 21 ft sailboat costs about A$1,507 including GST (US$870) in Optimum Cruise, or A$1,645 including GST (US$950) in C-Breeze. A 110% or 120% genoa costs less and a 140% or 150% costs more.
How much does a new set of sails cost for a 21 ft sailboat?
A new mainsail and 130% furling genoa together cost about A$3,410 including GST (US$1,970) for a typical 21 ft boat in Optimum Cruise, or A$3,713 including GST (US$2,140) in C-Breeze. Shipping is added at checkout.
Why do sail prices vary between 21 ft boats?
Two boats of the same length can carry very different rigs. A tall fractional rig or a big masthead genoa means more sail area, more cloth and a higher price, so check the exact price for your boat rather than the median.