Ok to Split Plywood (into halves or thirds) beneath Queen Memory Foam Mattress?

[quote=“Phoenix” post=30864]
I’m not sure which foundation TandL was linking to (it goes to a reply link to this topic) but there are some sources for KD (knock down) foundations in the foundation post here.

Phoenix[/quote]

My apologies, I fixed the broken link. It is linked to the foundation that is sold by mattresses.net it is the only one I can attest to.