Abstract: An apparatus for leveling a floor is disclosed that has a rigid member sized to span at least three floor joists. The rigid member can have holes spaced according to spacing of the floor joists. A fastening device can be inserted into the holes of the rigid member and into holes in the floor joist and a threaded first end and a threaded second end of the fastening device can receive nuts and washers. Tightening the nuts on the first end of the fastening device, will secure the fastening device to the at least one floor joist and tightening a second nut that is threadably engaged with the second end of the fastening member can pull the at least one joist towards the rigid member. The fastening device can be a threaded rod that is bent at a ninety degree angle.