Material vs. Supplies
I set tile and do bathroom remodels. I do not provide any of the items I install, such as tile or preformed shower pans. Items I use and leave with the customer are Sand mix, drain kits, water proofing, reinforcing fabric, (comes in large rolls), thin set, grout and colored caulking and of course the tile that the customer has provided.
Items I use in the performance of my work are screws, nails, brushes, other types of caulks, painters' plastic, drop clothes (disposable ones and cloth ones that I can use over and over on other jobs) plastic knives, blades and driver bits and lumber for forming. The question is, what is the proper category to name these items?
