seat, pedestal mounting

[russman]

What is the best way to mount a pedestal to the floor board?I have tried 1/4 lag bolts but they pulled up on my second trip out.the floor cant be over 1/2 thickthe pedestal base is only about 7-8 inches squarethe seats are barrel style bucketsi weigh 215lb so there has to be some serious tork on the base.Helprussman(1976 Mark Twain 180BR 302 ford )

[mellowyellow]

mount seat base to plywood square, then mount withSS screws. u can even put down an epoxy mix base tofurther permanently seal it to the deck.safe boating,M.Y.

[swist]

Yep, you need some serious reinforcement if your deck is only 1/2" think - even if you through-bolted (which you should always do- never use any kind of self tapping screws for anything with any loading on it), you would likely rip those bolts out too. A plywood square on BOTH sides of the deck would be even better.