I have wood blocks that came with the boat. I like the concept of spartite but the pros don't seem to outweigh the cons. I've had zero problems with my traditional shims and the spar tape/boot tape that the boat yard used has been perfect. I even had some canvas made to cover the tape so as to reduce wear and tear due to sun and weather.
Once the position of the mast is set, the shims aren't really under load while standing still. One of my shims had a notch cut to prevent it from sliding down. I mirrored that notch on the opposite block and trimmed the top off just a smidge to make for a smoother mast boot. I can't recall if they are just pine blocks or if they are some hardwood. As I recall they were not particularly wide and could have been made out of dimensional lumber. A 2x2 perhaps. Maybe an oak 2x2? Josh Jul 16, 2025 19:47:20 CHARLES SCHEAFFER via CnC-List <cnc-list@cnc-list.com>: > Is Spartite the best way to shim a mast in the deck ring? Are there other > ways to shim a mast for a DIYer? > > Chuck S
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