I'm curious what the sealant on the plywood is and where you got prefinished ply. Also, if you put a full back on the rack it will keep the shelves from sagging. And melamine would actually be worse than ply when it comes to sagging.
Where are we going, and why am I in this handbasket?
Never argue with idiots. They will drag you down to their level and beat you with their experience.
Artificial intelligence is no match for natural stupidity.
I'm curious what the sealant on the plywood is and where you got prefinished ply. Also, if you put a full back on the rack it will keep the shelves from sagging. And melamine would actually be worse than ply when it comes to sagging.
My dad used to own a business and bought it for something years ago, a sheet of it is like $75 compared to a normal sheet being around $15