Database size estimates

I am hard at work estimating database size requirements to assist in the design of some customizations as well as some company policies (e.g. use User Notes or Phone Calls)

I need some basic feedback from NetSuite to plug into my spreadsheet.  Once I finish the spreadsheet I will share it here in case others would like to calculate their space usage.

I will list each field/data type that I need size info for:

 CheckBox          Number      1 byte  Currency          Number      4 bytes  Date              Date        ?  Decimal Number    Number      4 bytes  Email Address     varchar2    4000 bytes(max)  Free-Form Text    char(300)   300 bytes(max)  Integer Number    Number      4 bytes  List/Record       Number      4 bytes  Multiple Select   n/a         8 bytes (2 * 4byte FKs ??)  Percent           Number      1 byte  Phone Number      char(20)    20 bytes?  Time of Day       Timestamp   1 byte