Hi Guys, i well into the renovation of the 1947 1.5 story house. The house is 26'x26' what i found is that there are 3 (2x6) together along the middle of the house about 12' over, there are 3 metal support to the foundations. Is this adequate support? We were planning to support it further by put in the some bolts right through. Do you think i need an extra wall down there? We are putting in new walls for insulation, hardwood ceilings. The middle of the house along this beam runs the bathroom and staircase up to the attic, so a lot of weight on it. Already there is lots of shifting of the floors but my old carpenter things it is no big deal.