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Why I’m Using Coosa Instead of Marine Plywood For My Sailboat Interior (This Is What I've Learned)

28 December 2025 · 10 min · 16K views

Golden hour glints on sapele trim aboard sailboat under construction

What this video covers

Andy is gutting a 1970 Paceship Yachts Westwind 24 for a complete interior refit, replacing traditional marine plywood with Coosa panels.2:51 He selected Coosa, a fibreglass-reinforced foam, for its resistance to warping, twisting, and moisture absorption.4:15 While he acknowledges that veneered plywood offers a superior finish for high-varnish applications, he prefers the structural stability of Coosa for his planned interior.4:45 The design aesthetic draws inspiration from Herreshoff-style interiors, featuring clean white-painted surfaces accented with sapele trim.5:13 He plans to use a satin or semi-gloss finish for the bulkheads and settees to avoid the glare of high-gloss coatings.7:49 The project involves extensive fibreglassing and woodworking, with a goal to have the vessel ready for the water by July 2026.8:29

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