inaccurate material list (unspecified additions to list)

[Park e]

Suite 2014
I'm having issues with the program generated material list: I am planning out a one story house with a 1/2 story loft area over half of the main floor. All rooms (except the bath which is tile) are to have hardwood floors. When I generate the material list, it lists 1/2" carpet padding rebond on the list. I have gone over the plan, room by room (including stairs) and have made sure it is all hardwood flooring yet the list persists on showing it.
Is there a way (or a 'key') to find out where a given material item is slated to be used from the ID number?
This makes me wonder what else is being generated that I have not specified for. Does anyone have ideas about this?