To dream of a hardware store represents choices that are more serious than you first thought. Making the decision to get something over with. Self-improvement or attitude adjustments that you realize need more effort or resources. Noticing yourself having to do more than expected to get something done. You may be looking around for more powerful or serious solution to a nagging problem.
Negatively, a hardware store may be a warning to be cautious about being too hasty or allowing a problem to get out of hand.