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Fitting Structural Coosa Bulkheads WAY Better Than Factory!

15 March 2026 · 18 min · 17K views

Man fits OSB bulkhead into curved sailboat hull

What this video covers

Andy replaces structural bulkheads by first creating templates from OSB before cutting the final panels from Coosa board.3:05 To ensure a precise fit without creating hard spots against the hull, he cuts the templates with a slight gap, aiming for a fit that slides into position without requiring force.3:53 He uses a laser level to ensure the new bulkheads are plumb and square, which simplifies the future installation of a door frame.16:01 When transferring the template shapes to the expensive Coosa panels, he aligns the straight edges with the factory edge of the material to maintain structural integrity and minimize waste.13:34 He notes that while the bulkheads should touch the hull for support, they must not be wedged in, as forced contact creates localized stress points.4:12 The process involves iterative trimming and fitting until the panels achieve a tolerance within 1/16th of an inch.16:29

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