Above is a cutaway drawing of a the USS Iowa as she appeared in 1945.   The diagram is color coded to show you what portions of the ship served what purpose.

The above drawing represents an attempt to split the difference between reasonable detail and reasonable size to display on your monitor.  Not everything is possible to label with total accuracy when confined to such a small space, so generalizations have been made.

For example, "storage" constitutes food items, paint, other ships equipment - pretty much everything except ammunition.  All ammunition is colored coded the same, and this includes 20mm, 40mm, 5" and 16".   "Crews Quarters" are not specifically broken down such as enlisted sailor, marine, chief, or officer use.

Also, on the above diagram, one pixel represents approximately one foot, and the diagram is fairly accurate when it comes to scale.  However, some features have been slightly re-aligned to allow for improved clarity at the expense of technical accuracy.