PSA: Almost messed up my deck project with 'exterior' plywood that wasn't fully rated.

Used it for some steps and it started to swell after a few rains. Check the glue code on the stamp, mine was only for covered use, not direct weather.

3 comments

3 Comments

mark7311mo ago

My last project with Exposure 1 plywood taught me that lesson the hard way.

karen_wells1mo ago

Yikes, @mark731! What was the MAIN thing that went wrong with that plywood?

haydenp9527d ago

My uncle used that stuff on his shed roof three years ago. The whole thing warped like crazy by the next summer, @karen_wells. He ended up having to replace all the siding panels.