Any Simple Approach to Drawing Floors?

In drawing deck plans I am trying to illustrate clearly what decks are inside, what decks are outside, what decks are raised, what decks are sloped, what decks are wood, and places where these is not deck.

For me, this has been a tedious process where I have had copy the bulkheads and recombind them to create the various deck secdtions. I was wondering if any had a simpler approach generating floors/decks from walls/bulkheads.