Cheap Flooring

I am new to Laminate Flooring projects, and need some advice. A hardware store has laminate flooring for a great price .85 sq ft. Now here is the big question: These boxes have been stored out in a shed over this past winter 2004. No water has gotten on them, they are their regular box with plastic around them. But my question is do you think the elements may have gotten to them still???? What would you advise?