For a warehouse, can I deduct the permanently fixed high racking coverage area from the gross floor area, and focus my 75% daylight coverage on the aisles and landing spaces only? I say yes. Right?

using TDD's & simulation.

( I can't believe I don't know this answer, forgive me if this is a regularly asked question, and I missed it in a search result. I have read several posts and I am not sure I am clear.)