I'm new to the site but everything I have read thus far has been greatly helpful. I have to do a support job on my ranch styled house. I have all the proven foundation problems, but NO water problem. Sticking doors, cracks in corners floor to wall separation, etc. I know I have to level it by Jacking it. I also know that I have to use piers/footing. Here's what i don't know, I don't know how far apart the footings need to be, nor what is the best lasting material to use for the footings? Also I need to know if I am pouring my own how far down should the form go for a 6 inch high pier? Do they make pre-made piers for this type of job?
Thanks for any help.