I'm looking at framing the interior of an addition with a full basement and it appears that lally columns will be neede to support the floor above the basement.
So I'm, looking for information regarding spacing footing etc, similar to the tables available for joist and rafter sizing.
A quick Google search turned up a lot of useful information abouit replacing them, but nothing regarding installing them 'from scratch'.
I know enough engineering to understand something that is intended for a contractor or architect.