Cutting a unirigger (the cross pieces welded to bottom of I beams)
Posted: Sat Nov 03, 2012 9:54 am
My 1973 double wide is sitting on a full basement foundation with concrete walls 8" thick. I am installing a bathroom in the basement with a shower/tub. One of the uniriggers (cross pieces welded to bottom of the I beams) is interfering with the installation of the greenboard for the ceiling in the shower/tub. The back wall and walls at both ends of the tub/shower are installed, plumbing is in for the shower/tub, studs and greenboard are installed. Taking down the walls and shortening the studs by 2 1/4" would be a monumental undertaking. I would rather cut out the one unirigger that is in the way. However, I don't want to cause structural damage and cause the I-beam to twist because that single unirigger is gone. Uniriggers are spaced every 6 feet. Can that one unirigger be removed without causing grey hair? 
