Exterior Grade Plywood

[redfishbluefish]

Had an interesting conversation today with a Pro Desk guy at HD regarding plywood. I've been wondering why some of my plywood projects have been failing......delamination. When I purchased the plywood at HD, I was told it was exterior grade. Well today the Pro guy told me that they haven't sold true exterior grade plywood in many years....it would be coded RED, as he repeatedly said. The plywood they carry might say it could be used on outside projects, but it's not truly exterior grade. It's the glue that's different and significantly adds to the cost. He told me that 1/4 x 4 x 8 sheet I was interested in, that cost about $18 at HD, would be $45 to $50 if it was truly exterior. I asked about exterior sheathing, and his comment was that it's used on the exterior of the building, but then needs to be covered up.

So I learned something today.....not to buy my plywood at HD for tank stand projects anymore.

 

[kschweer]

Had an interesting conversation today with a Pro Desk guy at HD regarding plywood. I've been wondering why some of my plywood projects have been failing......delamination. When I purchased the plywood at HD, I was told it was exterior grade. Well today the Pro guy told me that they haven't sold true exterior grade plywood in many years....it would be coded RED, as he repeatedly said. The plywood they carry might say it could be used on outside projects, but it's not truly exterior grade. It's the glue that's different and significantly adds to the cost. He told me that 1/4 x 4 x 8 sheet I was interested in, that cost about $18 at HD, would be $45 to $50 if it was truly exterior. I asked about exterior sheathing, and his comment was that it's used on the exterior of the building, but then needs to be covered up.

So I learned something today.....not to buy my plywood at HD for tank stand projects anymore.

Good info Paul!