help with SIPS footings dimensions?

[rob408]

hi.. im a new member and was after a little guidance in regards of footings for a single story SIPS build. i can find anything on line that offers advice, im thinking with it being SIPS walls and roof the weight load will be minanul compared to a brick and block build.

thanks in advance 

[JohnMo]

Are you building a house, garden room or something else?

[markc]

As above plus type of ground, size/type/proximity of trees or other buildings etc.

if an extension to existing does it have strip foots?, depth ? Is it on a raft?