Shooting Bench Top

[Gappmast]

Those of you that screwed and glued layers of plywood together was it treated exterior and what did you use for glue? Also any issues with moisture getting trapped between the layers?

Marine plywood 100% glue with screws every 6 inches on the complete top. The screws are from the bottom so they don't show. Benches are under a cover but do get wet from some wind blown rain and some "round holes" in the roof. They have been there eight years and going strong no de-lamination or rot. We have painted them twice

 

[Dead Eye]

Is marine plywood the same as the treated stuff you get at the lumber yard? If not where do you get it. Especially if you are not costal.