Floor

[shawn1982]

I am to the point on my boat remodel to start putting in the floor...So marine plywood or treated plywood????

[JosMN]

Marine is best, but you can use a nice AC exterior and seal it well with spar varnish and it will last for a LONG time, and its around $25 a sheet vs $75-100 for marine. Stay away from treated.

[LightningBG]

Marine is best, but you can use a nice AC exterior and seal it well with spar varnish and it will last for a LONG time, and its around $25 a sheet vs $75-100 for marine. Stay away from treated.

[PurpleFloyd]

This is something that is becoming more popular too. More expensive than Marine ply but already finished so you don't need carpet or vinyl and easier to clean/ maintain.

http://www.kingplastic.com/products/starboard.aspx

[Chappyman]

Try Menards I picked up 3 sheets of marine grade 1/2'' for 49.00 each.

[BEAST]

This is what the plant manager told me about MicroPro AC2 Treated lumber

"Our AC2 treated lumber is fine to use against Aluminum."

Aluminum building products may be placed in direct contact with MicroPro treated wood products used for interior uses and above ground exterior applications such as:

• Decks

• Fencing

• Landscaping projects

Examples of aluminum products include siding, roofing, gutters, door and window trim, flashing, nails, fasteners

and other hardware connectors. However, MicroPro treated wood in direct contact with aluminum products

should only be used in code compliant construction applications that provide proper water drainage and do

not allow the wood to be exposed to, or remain in contact with a continual moisture source, standing water

or water immersion. In addition, MicroPro treated wood should not be encased, sealed, or wrapped with

aluminum products where trapped moisture or water can occur so as to avoid pitting or other unwanted results.

[TooTallTom]

...provide proper water drainage and do not allow the wood to be exposed to, or remain in contact with a continual moisture source, standing water or water immersion. In addition, MicroPro treated wood should not be encased, sealed, or wrapped with aluminum products where trapped moisture or water can occur so as to avoid pitting or other unwanted results.

Sounds like it's not good to mix that treated with aluminum in something like a boat.

[jwmiller33]

I bought a old Lund 3 years ago and replaced all of the wood with new 3/4" marine plywood and wrapped it in marine carpet. I took the floor apart this past weekend to look at how the plywood was holding up and inspect for mold and damp wood. It looks the same as the day I put it in. I have gotten it soaked in the rain plenty of times too. If I had to do it all over again, I'd do it the same way with marine plywood. It is only like $40/sheet and knowing how much boats tend to get wet, it is a good idea to go with wood that is "marine" standard. Also nice not having to worry about the corrosion factor with aluminum in some of the treated stuff.