I see a few questions using the materials tag. This seems to me like the tools tag. I suppose it can give a question context. It just seems like a tag that adds very little to the question. The current questions using tag are as follows
Is PVC pipe safe to use for a dust collection system? I guess you could argue that the OP is asking about PVC "materials"
How can I safely move complete 4 ft x 8 ft sheets of plywood alone? I added the plywood to this question but don't see how the materials tag fits.
How do I calculate the weight threshold for plywood boxes/cabinet carcasses? Again, I added the plywood to this question.
I am not trying to burn the tag or anything because I am sure it is justafiable. I would just like to know what the guidelines for using that tag would be. What would the appropriate usage for this tag?