It depends on why it's buckling, but more often than not, it's fitted too tight to walls, cabinets, etc., or it's being bound by fasteners improperly placed in the shoe molding around the base.
How about some more information if you want some help. Do you need to know what we need to know or do you already know what we need to know and you are holding back waiting for us to ask for what it is we need to know?
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