MAT 1245
Specifications
Hull
| LOA | 40.85 ft |
| LWL | 34.9 ft |
| Beam | 12.3 ft |
| Draft | 8.4 ft |
| Displacement | 15,000 lb |
| Ballast | 7,399.5 lb |
| Hull speed1.34·√LWL | 7.9 kn |
Rig & Sails
| Iforetriangle height | 55.7 ft |
| Jforetriangle base | 15.8 ft |
| Pmainsail luff | 54.4 ft |
| Emainsail foot | 19.4 ft |
| FLforestay | 15.8 ft |
| Mainsail | 1,009.9 sq ft |
| Jib (100%) | 440 sq ft |
| Spinnaker | 748.1 sq ft |
About the MAT 1245
Updated version of M.A.T. 12 (2005). Hull length 12.45 m/ 40.8 ft. Draft (adjustable): 2.55/2.66 m 8.4/8.8 ft. Displacement (variable): 6.800/6.940 kg 14.990/15.300 lbs. Ballast (adjustable): 3.240/3.380 kg 7.142/7.451 lbs. Jib LP: 4.94 m/16.2 ft.
The MAT 1245 is a 40.85 ft fractional sloop designed by Mills Design and built by M.A.T. in 2012. While the exact number of hulls built is unknown, the vessel is characterized by a displacement of 15000.0 lb and a beam of 12.3 ft, offering a balance of performance and comfort.
- Best for:
- This boat suits coastal cruisers and those seeking a modern, performance-oriented cruiser with a fractional rig, particularly those who prioritize up-to-date electronics and sail inventory.
- Bluewater capability:
- With a displacement of 15000.0 lb and a capsize ratio of 2.0, the MAT 1245 offers moderate offshore capability, though its relatively light displacement for its length suggests it is better suited for coastal and nearshore cruising than heavy ocean passages.
- Comparables:
- Comparable boats include other 40-foot fractional sloop cruisers from the early 2010s, such as the Beneteau First 40.7 or Hunter 410, due to similar LOA, fractional rigging, and emphasis on sailing performance over heavy bluewater displacement.
Direct variant of the MAT 1245
Near-identical models — same hull, builder and designer, re-badged or lightly changed. Specs and owner-reported issues are typically shared across the group, so a sister model's page may carry detail this one doesn't.
Performance
ORC Performance Data(5 certificates)
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° | 6.0 | 7.1 | 7.6 | 7.8 | 8.0 | 8.0 | 8.1 |
| 60° | 6.3 | 7.3 | 7.8 | 8.0 | 8.2 | 8.3 | 8.4 |
| 75° | 6.6 | 7.5 | 7.9 | 8.2 | 8.4 | 8.6 | 8.8 |
| 90° | 6.8 | 7.7 | 8.2 | 8.4 | 8.6 | 8.8 | 9.3 |
| 110° | 6.6 | 7.6 | 8.2 | 8.6 | 9.0 | 9.4 | 10.1 |
| 120° | 6.3 | 7.5 | 8.1 | 8.6 | 9.1 | 9.5 | 10.5 |
| 135° | 5.7 | 7.0 | 7.8 | 8.4 | 8.9 | 9.4 | 10.9 |
| 150° | 4.8 | 6.1 | 7.1 | 7.8 | 8.3 | 8.8 | 9.9 |
| Beat VMG | 4.0 | 4.8 | 5.4 | 5.6 | 5.8 | 5.8 | 5.9 |
| Run VMG | 4.2 | 5.3 | 6.2 | 6.9 | 7.5 | 8.0 | 8.9 |
Pricing
We don't have market pricing data for the MAT 1245 yet. If you own one, help other buyers — what did you pay for it? Reports build a community price estimate over time.
Estimated Cost of Ownership
Based on 40.85ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
8 reported issues across 6 systems for the MAT 1245, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a MAT 1245? 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 8 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
Similar Sailboats
Which engine powers your MAT 1245?
We haven't confirmed the engine for this model yet. If you own or know one, tell us — as owners report in, we build an accurate picture over time.
Brands sometimes mentioned for this model: Yanmar — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the MAT 1245
Checking eBay for sails sized to this boat's rig…