I have a couple of steel I-beams in the basement of my two-year old, one-story house. One of the metal post supports is in the middle of a newly constructed bedroom. I could work around it, but would like to add a new metal post support that would be 11'6" from the outside wall (poured concrete) and remove the existing support that is only 5' from the outside wall. The other end of the I-beam has a support that is 11'6" from the outside wall and most of the other I-beam supports are this distance apart as well. This I-beam is 28'6" long between the concrete walls. I don't know why one support is located closer to the wall. Above it is a guest bedroom with no unusual weight. In building the bedroom I added a wall that runs perpendicular to the 10" joists so there is additional support under the floor that did not exist before. Please give me your opinion on what I am proposing to do.