How do you conduct inventory?

1.Are you involved in the construction industry?
2.What role does your company fill in the construction process? (check all that apply)
3.1. Do you routinely inventory building materials?
4.How often do you inventory supplies/materials?
5.1. How do you conduct/track inventory? (check all that apply)
6.1. Which magazines do you subscribe to? (check all that apply)?