Hi,
I have an older (1908?) home with an addition that was built around WW II. The addition is supported with sporadically placed 4x6, 4x4, and 2x4(s) (like stilts) that rest on blocks. (The exterior was veneered with a concrete looking coating... and looked like a foundation from outside). There is a 3' (approx) tall crawl space for a basement and the room(s) above are sloping. I'd like to install some kind of footer/foundation/support and could use all the help/advice I can get

Thanks in advance

Max

Yikes -- sporadically placed pier and post
construction. Possibly done during the War,
when materials were scarce and the competent
guys had all been drafted....

First thing, since this is a structural
issue, it needs to be done in accordance
with code. Talk to some contractors to
get an idea what it really needs and what
they'd charge. I've done a little leveling
with a 12 ton hydraulic jack. It's
definitely not something to try if you're
not exactly sure what you're doing. It's not
something I can tell you how to do via e-mail. You have to start with the lowest
point, and raise it as much as you can
without distorting the structure too much,
then raise other points around it, always
supporting everything properly, and never
lifting anything too much at once. When you get it lifted, then you have to build a
proper footing and cripple walls, and put in
whatever is required under the middle of it.
Check with your building and safety
department to see what they allow an owner-
builder to do.