Dehler
Dehler 31
Photo being verified
We are confirming an exact hull photo for this model. Specifications and survey notes are complete.
The Dehler 31 is one of Northern Europe's most recognisable production sailboats. Designed by Dehler / van de Stadt and built from 1980 to 1985, roughly ~400 hulls left the yard — German Dehler 31 performance cruiser. With 9.48 m LOA, 3.03 m beam, and about 5,498 kg displacement, the model sits in the sweet spot for couples and small families cruising the Baltic, Skagerrak, and North Sea. The Dehler 31 is tracked by FairHelm on northern brokerage sites. Strong German resale — bilge keel and fin-keel variants survey differently. Buyers cross-shop comparable LOA models before committing survey budget. Nordic buyers should compare asking price against documented rigging, drivetrain, and keel work — cosmetic refreshes rarely replace deferred structural maintenance. Annual ownership in Swedish marinas typically runs 95 000–240 000 kr for a 9.48 m cruiser with realistic technical reserves. FairHelm tracks Dehler 31 listings because these hulls trade constantly on Blocket, Scanboat, and German brokerage sites. Buyers are rarely choosing between "good" and "bad" boats — they are choosing between documented maintenance and deferred work. A polished teak cockpit or new plotter does not cancel unknown rigging age, keel-bolt corrosion, or moisture at chainplates. That is why survey discipline matters more here than brand romance. For Nordic ownership, Dehler 31 works as a coastal weekender with occasional longer passages when equipped for cold-water sailing: reliable heating, solid ground tackle, and a realistic technical reserve beyond berth and insurance. Compare adjacent models in FairHelm's [model guides](/en/yachts/models/) and read survey notes before committing a deposit. The cheapest asking price on Blocket is rarely the cheapest boat to own over three seasons. When you shortlist a Dehler 31, build a simple survey scorecard: hull moisture, rigging age, drivetrain service, and chainplate integrity. Owner forums and yard quotes from Stockholm, Gothenburg, and Helsingør help you separate cosmetic refresh from structural deferral — especially on boats marketed as "ready to sail" without invoices.
At a glance
Quick facts
- Production
- 1980–1985
- LOA
- 9.48 m
- Beam
- 3.03 m
- Model
- Dehler 31
Technical data
- Length overall (LOA)
- 9.48 m
- Beam
- 3.03 m
- Production years
- 1980–1985
Typical problems
- What standing rigging fatigue issues appear on Dehler 31?
- Unknown rigging age is common on Dehler 31; budget replacement if invoices are missing.
- What chainplate leaks issues appear on Dehler 31?
- Chainplate bedding failures often show as ceiling stains — moisture mapping before purchase.
- What deck core moisture issues appear on Dehler 31?
- Stanchion bases and tracks concentrate water ingress without periodic rebedding.
- What keel structure inspection issues appear on Dehler 31?
- Keel bolts and grounding history need professional survey on older imports.
- What portlight seal age issues appear on Dehler 31?
- Acrylic portlights lose compression; interior stains follow on long-production hulls.
Design History
Dehler 31 emerged when Scandinavian and North Sea yards were scaling reliable GRP cruising platforms for owner crews rather than charter fleets. Dehler / van de Stadt shaped the hull lines and interior volume for predictable manners in Baltic chop and North Sea swell. Production ran from 1980 to 1985; registry and owner-club sources cite approximately ~400 completed hulls.
Dehler positioned the Dehler 31 for coastal and offshore use in the 1980–1985 production window — explaining mixed maintenance histories on today's secondary market.
Mid-production changes were mostly interior trim, engine options, and deck hardware rather than fundamental hull revisions. That means survey condition, winter storage history, and rigging invoices usually matter more than the model year printed on the brochure. When you evaluate a Dehler 31 on Blocket, treat the maintenance story as part of the specification — not a footnote after the asking price.
Annual Ownership Costs
| Cost item | Low (SEK) | High (SEK) | Notes |
|---|---|---|---|
| Marina berth | 18,000 | 38,000 | 9.48 m class, Stockholm/Gothenburg |
| Insurance | 8 000 | 22 000 | Agreed value and cruising area |
| Haul-out + winter | 12 000 | 28 000 | Yard package varies by region |
| Antifouling + hull care | 6 000 | 16 000 | Materials and labour |
| Engine / drivetrain | 5 000 | 16 000 | Service intervals and saildrive |
| Rigging reserve | 7 000 | 20 000 | Standing rigging age |
| Deck / structural reserve | 6 000 | 22 000 | Bedding, moisture follow-up |
| Total annual | 62 000 | 172 000 | Excludes major refit years |
Annual ownership for Dehler 31 is predictable when service records are complete. Berth, storage, and insurance dominate fixed costs in Sweden. The largest variables are rigging replacement timing and any survey-led deck or drivetrain work triggered after purchase. Keep a separate technical reserve so routine season costs stay stable — especially on Blocket boats marketed as "ready to sail" without invoices.
Pre-Purchase Survey Checklist
Pre-Purchase Inspection Checklist: Dehler 31
Hull, Keel and Underwater Body
- Moisture-map the underwater hull; document osmosis or barrier-coat history on Dehler 31 GRP of this era.
- Inspect keel-to-hull joint, keel bolts (if external iron), and backing structure for movement or recurring fairing cracks.
- Check rudder bearings and steering linkage under load during sea trial.
Deck and Hardware
- Test bedding at stanchions, tracks, and winches; open nearby interior access if damp stains appear.
- Inspect hatches and portlights for seal compression and core moisture at corners.
- Verify chainplate areas internally for rust staining or soft laminate.
Rig and Sail Systems
- Confirm standing rigging age with invoices; treat unknown age as near-term replacement on club-used hulls.
- Inspect mast step, spreaders, and terminals for corrosion or fatigue marks.
- Operate furling and reefing systems under realistic load.
Machinery and Systems
- Review engine and saildrive service including cooling, exhaust elbow, and mounts.
- Audit batteries, charging, and owner-added electrical work for safe fusing.
- Check tanks, bilges, and hoses for age-related seepage.