Will i get in trouble?

i live in canada and i want to build grow boxes(those are boxes primarily meant for growing cannabis and sell them(that's not illegal here) and am probably going to get the majority of the resources i need from home depot if i buy a bunch of grow op sort of stuff will they say anything to me sop me from buying stuff there or possibly bring me to the cops(that one would be really funny because they can't do anything about it, also please don't just say yes or no if possible tell me what they could do to me and what you think about it