Flying Saucer floor timber

Outboard designs up to 14'

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Flash
Posts: 80
Joined: Mon Feb 03, 2014 10:56 pm
Location: Eagan, MN

Flying Saucer floor timber

Post by Flash » Sat May 03, 2014 9:28 am

Good morning,

I have noticed that some folks use 3/4 plywood, as the plan states, and some use solid wood for the floor timber on frame
5 1/2 for the Flying Saucer. I wondering what the reasoning is for each method?

Thanks,
Flash
Flash
Yellow Submarine II - Flying Saucer
Summer Wind - Zip

gdcarpenter
Posts: 1378
Joined: Tue May 05, 2009 12:18 pm
Location: Raleigh, North Carolina

Re: Flying Saucer floor timber

Post by gdcarpenter » Sat May 03, 2014 9:45 am

I would suspect it has everything to do with economics and esthetics more than anything else. I would be reluctant to put in a 'solid' floor, I would worry about trapping moisture below the floor, slats lets things air out.
This is my first, last and only boat build.

http://www.gdzipbuild.blogspot.com

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Roberta
Posts: 6432
Joined: Tue Jul 31, 2007 5:23 pm
Location: East Troy, Wisconsin

Re: Flying Saucer floor timber

Post by Roberta » Sat May 03, 2014 10:39 am

Plywood is better for the floor timber in framing because the grain is running many directions in the laminated plies. Solid wood may have a grain pattern that is not as strongs as plywood.

Roberta :D
Roberta "Queen of the Boat Builders"
Built Zip "Oliver IV", Super Spartan "Jimmy 70", and Torpedo "The Glen L".

Flash
Posts: 80
Joined: Mon Feb 03, 2014 10:56 pm
Location: Eagan, MN

Re: Flying Saucer floor timber

Post by Flash » Sat May 03, 2014 7:38 pm

Thank you for the replies. That makes sense. I will recut the floor timber in plywood tonight.

Flash
Flash
Yellow Submarine II - Flying Saucer
Summer Wind - Zip

Mojo
Posts: 142
Joined: Tue Jun 11, 2013 2:56 am

Re: Flying Saucer floor timber

Post by Mojo » Sat May 03, 2014 7:47 pm

Given that you've already cut the timber I'd keep with it if it is up to the task. Ply will spread loads better then solid timber, but only has half the longitudinal strength as only half the grain runs in that direction.

Cheers
Mojo

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