J/100
Specifications
Hull
| LOA | 32.8 ft |
| LWL | 29 ft |
| Beam | 9.28 ft |
| Draft | 5.75 ft |
| Shoal Draft | 4.5 ft |
| Displacement | 6,500 lb |
| Ballast | 2,491.2 lb |
| Material | 32’ 10”10 m |
| Hull speed1.34·√LWL | 7.2 kn |
Rig & Sails
| Iforetriangle height | 38.5 ft |
| Jforetriangle base | 11.5 ft |
| Pmainsail luff | 38 ft |
| Emainsail foot | 13.5 ft |
| FLforestay | 11.5 ft |
| Mainsail | 498.4 sq ft |
| Jib (100%) | 221.4 sq ft |
| Spinnaker | 376.3 sq ft |
Accommodation
| Cabins | 1 |
| Berths | 4 |
| Heads | 4 |
| Water | 5 L |
| Fuel | 10.6 L |
| CE category | N/A€ |
About the J/100
Carbon spar opt. Removable Hoyt (self tacking) jib boom opt.
The J/100 is a performance-oriented 32.8 ft fractional sloop designed by Rodney S. Johnstone and built by J-Boats (USA) starting in 2005. With a displacement of 6500.0 lb and a D/L ratio of 118.98, it represents a lightweight, high-performance cruising platform that prioritizes speed and handling over heavy offshore comfort.
- Best for:
- This boat is best suited for coastal cruisers and active weekend sailors who value high-performance sailing characteristics and easy single-handed handling over heavy bluewater provisioning.
- Bluewater capability:
- With a low capsize ratio of 1.99 and a comfort ratio of 17.14, the J/100 is designed primarily for coastal and bay cruising rather than extended offshore passages, though its robust fractional rig and fin keel provide adequate stability for protected waters.
- Comparables:
- Comparable boats include the J/105 and J/109, which share similar fractional rig configurations and performance-focused hull forms, as well as the Beneteau First 32.7, which offers a similar balance of coastal cruising comfort and racing pedigree.
Performance
ORC Performance Data(1 certificate)
Measured performance data from ORC (Offshore Racing Congress) certificates.
Polar Diagram
Boat speed (kn) vs. true wind angle. Source: ORC
Racing Ratings
Triple Number
ORC Measured
Sail Areas (ORC)
Speed Table (kn)
| TWA \ TWS | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
|---|---|---|---|---|---|---|---|
| 52° | 4.9 | 6.0 | 6.7 | 7.0 | 7.1 | 7.2 | 7.3 |
| 60° | 5.3 | 6.3 | 6.9 | 7.2 | 7.3 | 7.4 | 7.5 |
| 75° | 5.5 | 6.5 | 7.0 | 7.3 | 7.6 | 7.8 | 8.0 |
| 90° | 5.7 | 6.8 | 7.2 | 7.4 | 7.7 | 8.1 | 8.7 |
| 110° | 5.8 | 6.9 | 7.5 | 7.9 | 8.3 | 8.6 | 9.2 |
| 120° | 5.6 | 6.8 | 7.4 | 7.9 | 8.5 | 9.0 | 9.8 |
| 135° | 5.0 | 6.3 | 7.1 | 7.6 | 8.2 | 8.8 | 10.7 |
| 150° | 4.2 | 5.4 | 6.4 | 7.0 | 7.4 | 7.8 | 9.1 |
| Beat VMG | 3.2 | 3.9 | 4.5 | 4.9 | 5.0 | 5.1 | 5.2 |
| Run VMG | 3.7 | 4.7 | 5.5 | 6.1 | 6.4 | 6.9 | 7.8 |
Estimated Value
Limited DataEstimated Cost of Ownership
Based on 32.8ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
6 reported issues across 4 systems for the J/100, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a J/100? This is an in-depth report on the faults this model is known for — so you know exactly what to check when you walk the boat. For the price of a coffee.
- ✓ All 6 specific issues — severity, symptoms & fixes
- ✓ Model-specific pre-purchase inspection checklist
- ✓ Downloadable PDF to take to your surveyor — yours to keep
One-time $2.99 · secure checkout by Stripe · instant access · 30 days online, PDF yours to keep
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Which engine powers your J/100?
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Used sails that fit the J/100
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