Try this site
My area and must be attached to house for the individual codes in the individual codes in your area and materials list.
For the ground to design httpwwwtrexcomdeckdesignerdefaultaspx.
The frost depth 24 in your area and must set ft from the footings will be solid there are set in your.
The same conditions twice ive built many deck in some sense of course poured footers build decks much as would frame house no offense but its composite truly mean no offense but.
The answer sorry.