Buying a used Grampian: separating a builder's own designs from its contract work
A used Grampian carries more layered history than its plain fibreglass hull suggests: the company built other companies' designs under contract and under license for much of its first decade, alongside a handful of boats it commissioned from outside naval architects, before settling into a run of in-house designs by Alex McGruer and, later, Rolf van der Sleen. After Grampian's 1977 closure, some of its molds went on building boats under entirely different names. That mixed parentage matters more for a Grampian than for most production brands: knowing which era, and which arrangement, produced a specific hull tells a buyer more than the model number alone.
Which era to target
The earliest Grampian-built boats — the Triangle-designed racers and day-sailers built under contract for US Yachts and, in Canada, for O'Day, plus licensed classes like the Albacore, Snipe, 420, and the Classic 22 — trace their design pedigree outside the company entirely; Grampian was purely the builder. The company's own design era began once outside dealer orders, chiefly from an Annapolis, Maryland dealer, prompted its first commissioned cruisers, then took its lasting shape once Alex McGruer joined in-house and drew the Grampian 26, 30, and 23, followed later by Rolf van der Sleen's G28. That in-house era, running through the company's 1977 receivership, is the core of what most buyers mean by "a Grampian." A final wrinkle sits outside the company's own timeline altogether: after the 1977 closure, Grampian's 34-foot molds passed to a separate Ontario owner who built a small run of boats under the unrelated name "Seaforth 34" — worth knowing if a listing's hull shape looks Grampian but the name on the transom doesn't.
What to inspect across the range
Aging aluminum hardware is a recurring theme rather than a one-model quirk: Practical Sailor flagged cracked aluminum stemhead and mast-step fittings on the Grampian 26, and Cruising World recommended replacing the Grampian 30's original aluminum stemhead fitting with stainless — the kind of age-related hardware fatigue worth checking on any older Grampian hull, not just those two models specifically.
Navigating the lineup
The range splits less by size than by origin: contract- and license-built classes carry someone else's design pedigree, while the McGruer- and van der Sleen-designed boats carry Grampian's own. A Classic 22 or Classic 31 is a different design story than a Grampian 26 or 28, even where their lengths overlap, and a "Seaforth 34" is a different company's boat entirely, wearing Grampian's old hull shape. The full model directory on this page sorts the range by year and length once that distinction is in hand.
Where they're listed
Grampian listings appear across 4 countries. United States has the most listings with 12 (63.2%), followed by United Kingdom and Canada.
Country view
19 listings · 4 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| United States | $7,500 | 12 | 2 | 63.2% |
| United Kingdom | $32,632 | 3 | 3 | 15.8% |
| Canada | $10,000 | 2 | 0 | 10.5% |
| Portugal | $20,976 | 2 | 0 | 10.5% |
All Grampian models
2 models grouped by length overall. Open any model to see recent asking prices and active listings.

