Pressure treated plywood boxes with strechers of pressure treated lumber for stability. Mesh and stone veneer applied to the plywood boxes. Boxes lined with vinyl and filled with dirt.

Anybody see any issues, or is the plywood a bad idea...

thanks -jamie

I tend to think it may warp with time,or be pushed out with frost,even tho there is little cold weather much in the GTA,I still think over time your money would be better spent in 4x4 pressure treated timbers than plywood