Builder drawingThe Seidelmann 25, introduced in 1977, stands as a quintessential example of Bob Seidelmann’s philosophy: bringing highperformance sailmaking expertise to the production fiberglass market. As one of the first models launched by the Berlin, New Jerseybased builder, the 25footer was designed to bridge the gap between a spirited club racer and a functional weekend cruiser. The boat is immediately identifiable by its exceptionally wide beam—nearly 9.5 feet—on a waterline length of just under 21 feet. This "beamy" profile was a strategic move to maximize initial stability and interior volume, a hallmark of the IOR (International Offshore Rule) era designs that influenced Bob Seidelmann’s early portfolio. While many 25footers of the late 1970s felt cramped, the Seidelmann 25 offered a platform that felt significantly larger than its LOA suggested, catering to the growing demographic of "trailersailor" families who refused to sacrifice living space.
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Median asking price and monthly listing volume for the Seidelmann 25. The line reads as the median ask for each month; bars are raw monthly listing counts.