Calculating deck supports to support a tub???

[rubadubeh]

I am planning to move my tub from its current location on a concrete slab to a yet to be built deck off my existing deck.  My tub is about 5000 lbs filled.
 I am unsure of how many deck peirs to use and was thinking that 6  x 12" piers below frost line depth should be enough but have no mathimatical skills to back that up.  

 Where can I find this information or how can I figure it out.

 Thanks in advance.

[jimmyb]

This link will help, if you're using deck blocks...

http://www.deckplans.com/howtobuild/hottub/hottub01.html

[rubadubeh]

Thanks for the reply Jimmy!  Pretty unscientifc information but helpfull nonetheless.

 Just to clairfy I will be augering and pouring 12" sonotube piers.

 Regards,  Chris

[Spiderman]

Both my decks are floating decks.  I've never had a problem with either of them.  They are only about 28" inches high, and to me, a floating deck is the only way to go.  A lot less work than digging holes and dumping in cement.  Most decks I would guess are overbuilt because you'd have to be an engineer to calculate the load rating  

[Chad]

I am planning to move my tub from its current location on a concrete slab to a yet to be built deck off my existing deck.  My tub is about 5000 lbs filled.
 I am unsure of how many deck peirs to use and was thinking that 6  x 12" piers below frost line depth should be enough but have no mathimatical skills to back that up.  

 Where can I find this information or how can I figure it out.

 Thanks in advance.

This should help-

http://www.ideas-for-deck-designs.com/deck_load_capacity.html