casting deck build question

[deltabbean]

Does anybody know what's the best way to attach plywood to aluminum for a casting deck build? I'm guessing screws, but what kind is best? Thanks

 

[deltabbean]

Almost forgot, also what is the best way to attach to the transom?

 

[El_Guapo]

In a perfect world, you'd use rivet nuts. In a realistic world, you're going to use screws. 316 Stainless sheetmetal screws would be great for this. To prevent any weird metal interactions and to keep them from backing out, hit them with some Loctite 242 or 248 (I like the 248 better, since the stick form is virtually mess free) prior to installation.

For going to the transom, I'd probably run stainless bolts all the way through.

 

[great white]

I didn't use any.

Careful sizing and shaping makes for a tight friction fit.

Basically, my deck "floats"...

 

[great white]

I thought I'd flesh out my previous post. Here's the best pics I have:

Support structure is "notched" on the two middle for/aft beams to friction fit between the forward edge of the middle bench and aft edge of the bow seat:

Deck is just sitting on the OEM bench and attached to the support structure:

Then the cooler well was added that is against the middle seat and a storage compartment up against the bow seat:

Now it can't move forward or back and it is very hard for it to move up and down.

Finally, a bow anchor locker takes away what little upward movement it could have:

Just 3 screws though the edge bow deck plate. None anywhere else in the boat.