Our 27 had only a single, backless, seat at the helm. Bench seats are pretty expensive. So I made this double seat with Wise chairs and mounts on a platform of cellular PVC and meranti balusters. And some plywood, of course.
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The platform ended up not wide enough to let the seats swivel, but they can be pulled out and repositioned. Not sure if any seat can really be folded down (or up). I can slide the seats off, fold up the "leg" and pop the platform off the side quite quickly.
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