J-Boats J/100 Buyer's Guide
Shopping the used J/100 means looking at a 32-foot 10-inch performance dayboat launched from 2005, designed by Rodney Johnstone with a deliberate bias toward simple, spontaneous sailing rather than cabin cruising. On the brokerage market she draws a specific crowd — the baby-boomer sailor who wants modern systems without a complex interior — and the boats you find will reflect that original brief more than any later refit trend.
Layouts on the Used Market
The cabin is consistent across the class: port and starboard settees, no V-berth, and a forepeak given over to open sail and storage bins. Provisioning is limited to an ice chest set aft of the starboard berth, and the boat has no chart table, merely shelves for navigation gear; the head is not enclosed, with the bow area converting to a wash space with basin and mirrored cabinets. A single 95-amp-hour AGM battery under the companionway steps serves the engine and automatic bilge pump. Buyers should understand they are acquiring a refined day-sailer, not a weekender with standing headroom amenities.
Equipment and Common Upgrades
Spinnakers and asymmetric spinnakers are commonly fitted, and a short-handed setup is a common theme — matching the boat's self-tacking jib boom and helm-side controls. Often-seen additions include a dodger, a code zero, and electric winches for easier shorthanded trim. Less common owner upgrades run to a self-tacking jib (already standard in concept via the Hoyt boom), bimini, teak decks, and autopilot. Power and energy center on the standard AGM battery; canvas and sail-handling upgrades like dodgers and code zeros improve comfort without altering the hull, while navigation and comfort add-ons such as autopilot appear as occasional upgrades rather than factory norms.
What to Inspect
The known construction is a SCRIMP-infused, balsa-cored hull composite construction using the SCRIMP resin-infusion system; on any used example, probe the balsa core for moisture intrusion at deck penetrations and along the hull-to-deck joint, since end-grained balsa suffers if water enters. Confirm the 10-horsepower Volvo saildrive condition, as the seal must be sound to keep water from the hull. Check the Hoyt self-tacking jib boom and hydraulic backstay adjuster for free operation, and verify the tiller-extension reach to halyard clutches and the Harken traveler car. With lifelines optional under class rules, inspect their attachment points on boats so equipped and the flush Wichard padeyes for cracking.
Availability and Buyer's Takeaway
These boats turn up in the United States, France, Canada, the British Virgin Islands, the Cayman Islands, and the United Kingdom. For the buyer, the checklist is short and specific:
- Verify balsa-core dryness at all deck and hull penetrations
- Confirm Volvo saildrive seal integrity
- Exercise the self-tacking boom and hydraulic backstay from the helm
- Check optional lifeline and padeye fastenings
- Accept the minimal cabin as designed, not a deferred refit
Price & volume trends
Monthly asking-price and listing-volume trends for the J-Boats J/100. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 13 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| May 25 | 2 | $120,000 | — |
| Jul 25 | 1 | $105,000 | -12.5% |
| Aug 25 | 1 | $93,500 | -11.0% |
| Sep 25 | 8 | $48,995 | -47.6% |
| Oct 25 | 3 | $139,000 | +183.7% |
| Dec 25 | 1 | $92,067 | -33.8% |
| Jan 26 | 2 | $97,727 | +6.1% |
| Feb 26 | 5 | $89,900 | -8.0% |
| Mar 26 | 1 | $95,000 | +5.7% |
| Apr 26 | 4 | $89,450 | -5.8% |
| May 26 | 1 | $89,000 | -0.5% |
| Jul 26 | 12 | $95,000 | +6.7% |
| Aug 26 | 1 | $95,000 | 0.0% |
Where they're listed
J-Boats J/100 listings appear across 7 countries. United States has the most listings with 27 (73.0%), followed by France and Canada.
Country view
37 listings · 7 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| United States | $94,900 | 27 | 13 | 73.0% |
| France | $92,898 | 3 | 0 | 8.1% |
| Canada | $109,450 | 2 | 0 | 5.4% |
| British Virgin Islands | $48,995 | 2 | 0 | 5.4% |
| United Kingdom | $81,463 | 1 | 0 | 2.7% |
| Cayman Islands | $48,995 | 1 | 0 | 2.7% |
| Netherlands | $104,303 | 1 | 0 | 2.7% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
11 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| J-Boats J/105 | 34.5' | $ 59,750 | 56 | 24 |
| J-Boats J/120 | 40' | $ 119,000 | 49 | 8 |
| J-Boats J/100You are here | — | $ 93,899 | 38 | 13 |
| J-Boats J/109 | 35.25' | $ 115,000 | 35 | 6 |
| J-Boats J/80 | 26.25' | $ 30,000 | 26 | 7 |
| J-Boats J/32 | 32.6' | $ 65,000 | 25 | 10 |
| J-Boats J/35 | 35.5' | $ 25,178 | 22 | 5 |
| J Boats J/122 | 40' | $ 287,500 | 20 | 2 |
| J Boats J/124 | 40.7' | $ 209,000 | 15 | 7 |
| J-Boats J/97 | 31.53' | $ 138,854 | 14 | 8 |
| J Boats J/92 | 30' | $ 39,407 | 14 | 7 |