Neptun 20 Buyer's Guide
The Neptun 20 is a centreboard cruiser that Neptun Boote GmbH & Co KG built between 1973 and 1982, with around 1,900 launched before the tooling was destroyed. On the brokerage market she appeals to sailors wanting a trailerable, shallow-draught weekender with a clever lifting roof, and most examples still carry the patented top that defines the class.
Layouts on the Used Market
Every Neptun 20 was finished as a two-berth longitudinal layout with no dinette, a simplification from the Neptun 22. The settees run 210 cm long and 68 cm wide, narrowing to 60 cm at the bulkhead, while the forward berth tapers to 180 cm long in the middle and roughly 160 cm wide at shoulder height. The lifting roof is the headline: lowered, it leaves about 1.40 m headroom; raised and locked from outside with two brackets, it gives almost standing height and is best operated by two people. The cockpit seats two to four on 1.79 m thwarts and has higher coamings than many larger modern boats, with spacious lockers and a swivelling table. Below, storage lives in sidewall swallow's nests and 90-by-37 cm berth compartments.
Equipment and Common Upgrades
No equipment appears at a consistent prevalence tier across these boats, so buyers should treat rig and interior gear as individual to each listing. The noteworthy factory option was a mainsheet traveller, absent on many boats and worth confirming. Otherwise, the simple masthead rig with adjustable foresheet hoist points and a line-raised centreboard defines the hardware you will find; any navigation or canvas additions are owner-fitted and should be judged on condition rather than assumed.
What to Inspect
The lifting roof mechanism is the first thing to check: its scissors, the back box covers, and the window seals all deserve close attention on a viewing, and the centreboard should be examined as well lifting roof scissors, back box covers, window seals. Because the roof's plastic edge is meant to seal tightly to the deck, degraded seals or distorted scissors are the path to a wet interior, and a centreboard that does not haul or lock cleanly undermines the shallow-water advantage.
Availability and Buyer's Takeaway
These boats turn up in the Netherlands. For a shopper, the checklist is short and concrete: confirm the lifting roof raises, locks, and seals; verify the scissors and window seals are sound; test the centreboard line and curry cleat; check whether a mainsheet traveller was fitted; and measure the forward berth against your tallest crew. A sound example delivers trailerable, variable-draught cruising with real headroom and a forgiving nature at modest ownership cost.
Price & volume trends
Monthly asking-price and listing-volume trends for the Neptun 20. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 1 row
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Apr 26 | 1 | $4,545 | — |
Where they're listed
Neptun 20 listings appear across 1 country. Netherlands has the most listings with 1.
Country view
1 listings · 1 country| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| Netherlands | $4,545 | 1 | 0 | 100.0% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
2 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Leisure 20 | 19.98' | $ 4,350 | 11 | 2 |
| Neptun 20You are here | — | $ 4,545 | 1 | 0 |