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33data points analyzed by Sailpages.com to compile this M-20 SCOW buyer’s report
M-20 SCOW

M-20 SCOW

Melges Boat WorksπŸ‡ΊπŸ‡ΈΒ· Design: H. Melges Jr./H. Melges Sr.
from 1963675 built
$600 – $1.6K est. annual maintenance
Catamaran / MultihullmonoFractional SloopVariableTwin/Triple
M-20 Sailing Association β†—

Specifications

Hull

LOA20 ft
LWL14 ft
Beam5.67 ft
Draft3.5 ft/ 0.67 ft min
Displacement595 lb
Hull speed1.34·√LWL5.0 kn

Rig & Sails

Mainsail114 sq ft
Jib (100%)62 sq ft
Spinnaker250 sq ft

About the M-20 SCOW

Sail Area: Main: 114 sq.ft. Jib:62 sq.ft. Spinnaker: 250 sq.ft.

Sailpages Buyer's Take

Designed by H. Melges Jr./H. Melges Sr. and built by Melges Boat Works, the M-20 Scow is a high-performance daysailer with a production run of 675 hulls completed in 1963. Its lightweight displacement of 595.0 lb and fractional sloop rig define its role as a fast, responsive boat rather than a heavy cruiser.

Best for:
This boat suits active sailors seeking a high-performance daysailer or coastal racer who prioritize speed and handling over long-range cruising comfort. It is ideal for those who enjoy frequent launching and trailering, given its light weight and manageable dimensions.
Bluewater capability:
With a capsize ratio of 2.7 and a comfort ratio of 5.76, the M-20 is not suited for offshore bluewater passage-making due to its light displacement and lack of heavy ballast. It is best restricted to protected coastal waters and day sailing.
Comparables:
Comparable boats include the C&C 20 and the O'Day 20, which share similar era and size constraints but differ in hull form and performance philosophy. The M-20 distinguishes itself with its scow-like hull shape and significantly lower displacement compared to these traditional keelboats.

Performance

Comfort5.8
Capsize2.70
SA/Disp39.9
Disp/Len97

Pricing

We don't have market pricing data for the M-20 SCOW yet. If you own one, help other buyers β€” what did you pay for it? Reports build a community price estimate over time.

Estimated Cost of Ownership

Based on 20ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$600 – $1.6K
Hull, rigging, sails, engine service
Annual Docking
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Annual Insurance
N/A
No price data available

Known Issues & Pre-Purchase Inspection

4 reported issues across 3 systems for the M-20 SCOW, compiled from owner reports in sailing forums and owner-association material.

1 critical1 major2 minor
Rudder2Hull1Structural1

Unlock the full inspection report

Thinking of buying a M-20 SCOW? This is an in-depth report on the faults this model is known for β€” so you know exactly what to check when you walk the boat. For the price of a coffee.

  • βœ“ All 4 specific issues β€” severity, symptoms & fixes
  • βœ“ Model-specific pre-purchase inspection checklist
  • βœ“ Downloadable PDF to take to your surveyor β€” yours to keep

One-time $2.99 Β· secure checkout by Stripe Β· instant access Β· 30 days online, PDF yours to keep

Similar Sailboats

Which engine powers your M-20 SCOW?

We haven't confirmed the engine for this model yet. If you own or know one, tell us β€” as owners report in, we build an accurate picture over time.

Already know your engine? Search all engines β†’ to find its exact parts.

Used sails that fit the M-20 SCOW

Checking eBay for sails sized to this boat's rig…