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Columbia 34 Mk Ii
Designer: William Tripp Jr.  ·  Builder: Columbia Yachts  ·  First built: 1970
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About the Columbia 34 Mk Ii

Built as part of Columbia's popular mid-size cruising line, this 34-footer represents the evolution of the original Columbia 34 design with refinements aimed at improving performance and accommodations. Columbia Yachts established a strong reputation for producing well-built, affordable cruising sailboats that appealed to middle-market sailors seeking reliable coastal cruising capabilities. The Mk II version incorporated design improvements based on owner feedback and changing sailing preferences of the era. Like other Columbia models, this boat was engineered for comfortable family cruising with practical layouts that maximize usable space below decks. The hull design reflects Columbia's philosophy of balancing seaworthiness with ease of handling, making it suitable for coastal exploration and weekend getaways. Columbia's construction methods emphasized durability and value, resulting in boats that have proven their longevity over decades of use. Many examples remain active in sailing communities, testament to the solid engineering that characterized the brand. For sailors seeking a capable coastal cruiser with proven reliability, the Columbia 34 Mk II offers the kind of straightforward sailing experience that made Columbia yachts popular among practical cruising enthusiasts who valued dependability over cutting-edge performance.

Core Dimensions
LOA (Length Overall) 33.58 ft / 10.24 m
LWL (Waterline Length) 27.33 ft / 8.33 m
Beam 10.00 ft / 3.05 m
Max Draft 5.50 ft / 1.68 m
Displacement 12,000.00 lb / 5,443 kg
Ballast 4,700.00 lb / 2,132 kg
Sail Area (Reported) 526.00 ft² / 48.87 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer William Tripp Jr.
Builder Columbia Yachts
First Built 1970
Last Built 1975
Related Sailboats Islander 34 · Tartan 33 · Ericson 33 · Cc 34 · Hunter 33
Owner Reviews

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Performance Ratios
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
 16.11
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
 29.57
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
 1.75
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 7.01
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
 1.98
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 976.53
Rig Dimensions
I (Foretriangle Height) 42.0
J (Foretriangle Base) 13.8
P (Mainsail Luff) 36.3
E (Mainsail Foot) 13.0
SA Fore 289.8
SA Main 235.95
How It Compares

vs. Cc 34, Ericson 33, Hunter 33, Islander 34, Tartan 33

This boat Similar boats
Dimensions
LOA
Columbia 34 Mk Ii ★
33.6 ft
Cc 34
33.5 ft
Ericson 33
33.5 ft
Hunter 33
33.5 ft
Islander 34
33.6 ft
Tartan 33
33.7 ft
LWL
Columbia 34 Mk Ii ★
27.3 ft
Cc 34
25.9 ft
Ericson 33
26.8 ft
Hunter 33
27.5 ft
Islander 34
25.0 ft
Tartan 33
28.8 ft
Beam
Columbia 34 Mk Ii ★
10.0 ft
Cc 34
11.0 ft
Ericson 33
11.2 ft
Hunter 33
11.4 ft
Islander 34
10.0 ft
Tartan 33
11.0 ft
Displacement
Columbia 34 Mk Ii ★
12 lbs
Cc 34
10 lbs
Ericson 33
9 lbs
Hunter 33
11 lbs
Islander 34
10 lbs
Tartan 33
10 lbs
Ballast
Columbia 34 Mk Ii ★
4 lbs
Cc 34
4 lbs
Ericson 33
3 lbs
Hunter 33
4 lbs
Islander 34
3 lbs
Tartan 33
4 lbs
Sail Area
Columbia 34 Mk Ii ★
526 sq ft
Cc 34
517 sq ft
Ericson 33
573 sq ft
Hunter 33
514 sq ft
Islander 34
471 sq ft
Tartan 33
531 sq ft
Performance
PHRF Rating (lower = faster)
Columbia 34 Mk Ii ★
—
Cc 34
—
Ericson 33
134 s/nm
Hunter 33
159 s/nm
Islander 34
147 s/nm
Tartan 33
153 s/nm
SA / Displacement (higher = more powerful)
Columbia 34 Mk Ii ★
16.1
Cc 34
17.8
Ericson 33
20.5
Hunter 33
16.1
Islander 34
15.9
Tartan 33
18.4
Ballast / Disp (higher = stiffer)
Columbia 34 Mk Ii ★
—
Cc 34
—
Ericson 33
41.6 %
Hunter 33
40.0 %
Islander 34
31.7 %
Tartan 33
—
Comfort Ratio (higher = more comfortable offshore)
Columbia 34 Mk Ii ★
29.6
Cc 34
22.7
Ericson 33
20.5
Hunter 33
—
Islander 34
27.1
Tartan 33
21.0
Capsize Screening (lower = safer)
Columbia 34 Mk Ii ★
1.75
Cc 34
2.04
Ericson 33
2.11
Hunter 33
—
Islander 34
1.84
Tartan 33
2.04
Displacement / Length (lower = lighter)
Columbia 34 Mk Ii ★
—
Cc 34
—
Ericson 33
219
Hunter 33
246
Islander 34
297
Tartan 33
—
Hull Speed
Columbia 34 Mk Ii ★
7.0 kts
Cc 34
6.8 kts
Ericson 33
6.9 kts
Hunter 33
—
Islander 34
6.7 kts
Tartan 33
7.2 kts
Speed Number (higher = faster)
Columbia 34 Mk Ii ★
2.0
Cc 34
2.2
Ericson 33
2.8
Hunter 33
—
Islander 34
1.7
Tartan 33
3.0
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