Oak or plywood for interior seat cleats?

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LordGothington
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Oak or plywood for interior seat cleats?

Post by LordGothington » Tue May 14, 2019 1:35 pm

I am building the D5 dinghy. The plans show 1"x1" cleats along the inside edges of the seats. I am seeking guidance on how to make these cleats.

One option would be to use some of the left over marine plywood and laminate strips together to form 1"x1" cleats. Another option would be to get some high quality oak lumber.

Using the plywood seems advantageous because it is going to be more resistant to expansion and contraction. However, I do not have a table saw, so cutting the strips with a jigsaw is going to make for a lot of sanding to create a flat surface. There is also a lot of labor involved in cutting and epoxying the pieces together.

Using nice S4S oak lumber seems like a lot less work -- but perhaps the expansion and contraction is going to be a problem? Or something else I am overlooking?

Or maybe oak is an excellent idea? I plan to make the area under the seats watertight and plan to coat everything in epoxy.

Thanks!



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Re: Oak or plywood for interior seat cleats?

Post by Jaysen » Tue May 14, 2019 1:45 pm

Get some furring strips... cut them to length and then coat them really well with epoxy... Just need a hand saw for that.
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Re: Oak or plywood for interior seat cleats?

Post by fallguy1000 » Tue May 14, 2019 2:13 pm

Oak is a pita because it requires pre-drilling.

Ply is a pita because it can split if set in place vertically.

Ply laid with the plies perpendicular to fastenings is fine.

Otherwise use a softwood for cleats as Jaysen advised.
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LordGothington
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Re: Oak or plywood for interior seat cleats?

Post by LordGothington » Tue May 14, 2019 2:17 pm

So would something easily accessible like this be a good choice?

https://www.homedepot.com/p/2-in-x-2-in ... /304600525

Or should I try to get a 'boatier' species of wood?

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Re: Oak or plywood for interior seat cleats?

Post by silentneko » Tue May 14, 2019 2:22 pm

Oak doesn't accept resin well being a hard wood. The strip in the link you posted will work well, just coat it a few times and your good to go. I like to warm mine up just a bit with a heat gun and then roll the resin on, as it cools the resin gets pulled in deep.
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Re: Oak or plywood for interior seat cleats?

Post by Netpackrat » Tue May 14, 2019 3:09 pm

I used doug fir from the lumberyard for mine. A table saw is easier but you can rip it with a handheld circular saw too. I rounded off the outside corners with a router to save a minuscule amount of weight and I thought the epoxy coat would be more consistent without the sharp corner there.

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Re: Oak or plywood for interior seat cleats?

Post by OrangeQuest » Tue May 14, 2019 5:26 pm

I spent about $11.00 at Home Depot for a 4"X4"X8' Douglas Fur post. circular saw guide set at .75" and ripped to 1"X4"X8' boards, stacked back up and ripped 1"X1"X8' boards. The first cut takes a pass on both but it is cheap and good boards.

You can cut it to the size you want.
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Re: Oak or plywood for interior seat cleats?

Post by OneWayTraffic » Tue May 14, 2019 11:51 pm

I used Radiata pine mouldings on my D5. It's really for gluing area to the frame. If I were doing it again I'd just cut strips of ply from scrap and do it that way. It's not really critical either way on that boat.

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Re: Oak or plywood for interior seat cleats?

Post by Capt UB » Thu May 16, 2019 2:44 pm

Re: Build log of LM18 RC LS
Post by jacquesmm » Wed May 15, 2019 10:17 am

The type of wood used for the cleats is unimportant. It can be cedar, pine, fir etc. As long as there is no incompatibility with epoxy, it will be fine.
Some builders have used strips of plywood cut from leftovers.
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