Cal 20 Buyer's Guide
Shopping for a used Cal 20 means entering one of the longest-lived one-design classes in American sailing. C. William Lapworth drew the 20-foot fractional sloop in 1960, Jensen Marine built 1,945 of them at Costa Mesa through 1975, and the boat remains a common sight in U.S. marinas decades later. For a buyer, the appeal is a simple, trailerable racer with active class racing and low ownership cost rather than a cruising interior.
Layouts on the Used Market
Every Cal 20 shares the same one-design hull: a 20-foot fiberglass sloop with a nearly 8-foot self-bailing cockpit and a compact cabin below carrying four bunks, a head, and storage bins. Production ran from 1961 to 1975 with no major redesign, so year-to-year differences are minor; what changes boat to boat is condition and the degree of racing prep. Most survivors are dry-sailed on trailers and towed behind a car, which keeps wear patterns different from permanently berthed boats.
Equipment and Common Upgrades
The class rules keep the boat close to original, so elaborate equipment lists are rare. Racers today lead their backstay, jib halyard, boom vang, and main cunningham to the cockpit where a crew can adjust them without moving, and a 2:1 jib-sheet purchase works the jib without a winch. Because the brief shows no commonly fitted or often-seen gear tiers, a buyer should expect period-correct hardware and treat any added systems as owner upgrades rather than standard. The consequential items to note are the sail-control leads and the trailer, since towing and dry-sailing define how most hulls have been kept.
What to Inspect
At a viewing, work the iron ballast keel for corrosion at the hull joint, since a 900-pound iron fin on a 1,950-pound boat is central to safety and value. Check the self-bailing cockpit drains for blockage, as a blocked drain defeats the cockpit's only built-in flooding defense. Verify the jib-sheet purchase and control leads are intact and that the transom-hung rudder stock shows no play.
Availability and Buyer's Takeaway
Used Cal 20s are found in the United States. For a buyer, the path is straightforward:
- Confirm hull condition and trailer fitness before purchase.
- Inspect keel-to-hull joint for iron corrosion.
- Test cockpit drains for clear self-bailing.
- Check rudder stock for free play.
- Verify trailer condition before towing home.
Price & volume trends
Monthly asking-price and listing-volume trends for the Cal 20. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 2 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| May 25 | 1 | $1,000 | — |
| Jun 26 | 1 | $500 | -50.0% |
Where they're listed
Cal 20 listings appear across 1 country. United States has the most listings with 1.
Country view
1 listings · 1 country| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| United States | $500 | 1 | 1 | 100.0% |