Longevity of unopened wines

[PinotEnvy]

Hi Tippy and welcome to the wine board. That is a difficult question to answer because there is no exact answer. Different reds (for example) wines will last longer than others. Many wines are meant to be drank within the first couple years of purchase. In fact they are ready to be drank when you buy them without aging. The ability for them to sit in your rack also depends on storage conditions. A cool dark place is important. Warm temperatures can significantly reduce their life.