Bruce Roberts Offshore 38 Information, Review, Specs

Make
Bruce Roberts
Model
Offshore 38
Builder
Designer
Number Built

The Bruce Roberts Offshore 38 is a quintessential example of the "stock plan" era of blue-water yacht design. Conceived by naval architect Bruce Roberts (with design contributions attributed to Ray Richards), this model was engineered to be accessible to amateur and semi-professional builders who prioritized ruggedness over racing pedigree. Unlike production boats that roll off a standardized assembly line, the Offshore 38 is a "builder’s boat," meaning that while the hull lines are consistent, the displacement, rigging, and finishing quality vary significantly depending on the construction material and the individual craftsman. It is commonly found in multi-chine steel or aluminum, though round-bilge fiberglass and cold-molded wood-epoxy versions exist. According to the official Bruce Roberts design portal, the model was intended to offer a "conservative, seaworthy platform" capable of long-distance voyaging, a mission it has fulfilled for hundreds of hulls globally.

Sailing Performance & Handling

Under sail, the Offshore 38 is characterized by its heavy displacement and high directional stability. With a Displacement/Length ratio typically exceeding 300 in steel versions, the boat is not a light-air performer; it requires a stiff breeze to overcome its significant wetted surface area. However, once moving, it tracks exceptionally well thanks to its generous keel—available in both long-keel and fin-keel-with-skeg configurations.

Handling is often described by owners as predictable and "sea-kindly," with a motion comfort ratio that excels in heavy weather compared to modern, flatter-bottomed coastal cruisers. Most examples are rigged as cutters or ketches, providing versatile sail-plan options for short-handed crews. The cutter rig, in particular, allows for the use of a staysail, which lowers the center of effort and keeps the boat balanced when the wind rises above 25 knots. While it does not point as high as modern fin-keel designs, its ability to "heave-to" effectively makes it a respected choice for offshore work.

Interior Comfort & Variations

The Offshore 38 was designed with two primary deck configurations: a traditional aft-cockpit (AC) layout and a center-cockpit (CC) version. The center-cockpit variant is particularly popular among liveaboards, as it allows for a private aft stateroom—a rare luxury on a 38-foot vessel of this vintage. Because Bruce Roberts sold these as plans and kits, the internal joinery ranges from utilitarian painted steel to elaborate, shipwright-grade tropical hardwoods.

Interior volume is generous, though the "pinched" stern and narrow waterline—design hallmarks of the era—mean that the usable floor space is slightly less than a modern 38-footer with a wider beam carried aft. Variations of the design include the Offshore 34 and the larger Offshore 44, both of which share the same heavy-displacement philosophy. The Bruce Roberts technical drawings illustrate a standard two-cabin layout with a U-shaped galley and a dedicated navigation station, though many builders customized the "Version B" pilot-house layout to include an internal helm station for high-latitude cruising.

Known Issues & Buyer’s Checklist

The most critical factor when evaluating an Offshore 38 is the pedigree of the builder. Since many were amateur-built, the quality of the initial construction is paramount.

  • Steel Corrosion: On metal hulls, inspect the "hard to reach" areas such as the bilge under the engine, the chain locker, and behind the cabinetry. Rust often starts from the inside out due to condensation trapped against the hull if insulation was poorly installed.
  • Weld Integrity: For steel and aluminum models, a professional ultrasonic thickness test (UT) is mandatory to ensure the hull plating has not thinned significantly and that the welds are sound.
  • Lead Ballast Encapsulation: In some home-built versions, the ballast was not properly encapsulated, leading to internal shifting or, in the case of steel hulls, "bleeding" where moisture meets the ballast.
  • Rigging Customization: Verify that the standing rigging and chainplates were sized according to the designer's specifications. Some amateur builders over-engineered these components, adding unnecessary weight aloft, while others may have cut corners.
  • Deck Leaks: On fiberglass or wood-epoxy versions, pay close attention to the deck-to-hull joint and any through-deck fittings (cleats, stanchions), which are common points of water ingress in older vessels.

Community & Resources

The Bruce Roberts community is one of the largest in the "self-built" world. The primary repository for technical updates and original specifications remains the Bruce Roberts official website. Additionally, many owners frequent the Bruce Roberts Owners Group and various technical wikis dedicated to steel boat maintenance, which provide invaluable peer-to-peer advice on managing the unique requirements of metal hull preservation.

The Verdict

The Bruce Roberts Offshore 38 is a robust, "go-anywhere" cruiser for the sailor who values safety and structural integrity over speed and modern styling.

Pros:

  • Exceptional structural strength, particularly in the steel and aluminum versions.
  • High motion comfort in heavy seas; a stable platform for long passages.
  • Affordable entry point into the blue-water cruising market.
  • Highly customizable interior layouts, including a true aft cabin in CC models.

Cons:

  • Sluggish performance in light winds and poor tacking angles.
  • Significant variability in build quality; requires a rigorous professional survey.
  • Higher maintenance requirements for metal-hulled variants (rust/electrolysis).
  • Limited resale value compared to well-known production brands.

Measurements

Construction & Hull

Construction Material
Hull Type
— Sailboat
Keel Type
Ballast
-
Displacement
-
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
38.19 ft
Waterline Length (LWL)
-
Beam
11.32 ft
Draft
5.91 ft
Max Headroom
6.4 ft
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
-

Calculations

Sail Area / Displacement (SA/D) Ratio
Ballast / Displacement Ratio
Displacement / Length Ratio (D/L) Ratio
Comfort Ratio
Capsize Screening Formula
Hull Speed
— kn