Hello, I have to replace both the SBB tray and the inner cover in my hive because the 1/4" plywood parts failed in both -- delaminated, warped, frayed. The cold weather condensation has been collecting in standing puddles on top of the inner cover ruining it completely after couple of months.
Plywood is much better than hardboard or particle board but still not good enough. What would be a better choice available from home improvement centers? Thanks, h.