Author Topic: 3/4 flooring?  (Read 43 times)

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Tom Freeburg

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3/4 flooring?
« on: July 09, 2020, 12:27:35 PM »
Full disclosure here.  I am building a 25 1/2 Tolman Jumbo, and using Brian’s construction manual as a guide because of the included details.
My question:  I bought 18mm Aquatec, not realizing it is acceptable to use 1/2 for the cabin and fish decks.  Due to the Covid issues I cannot return or even exchange it.  I am probably adding a lot of unneeded weight, yes?  Can I skimp on the underfloor supports?  (I think not)

Any suggestions?



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Re: 3/4 flooring?
« Reply #1 on: July 09, 2020, 12:46:36 PM »

Thanks for the kind words!

Very roughly figuring out the added weight, using 22' of deck that's 8' wide (this is LARGER than what you are doing), I calculate 3.6 cubic feet of extra wood ... at around 40# per cubic feet of fir plywood, that's only about 140#.  Your boat won't even know it's there ... Carry on.  Don't skimp on the under-deck structure.


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