We have recently bought a home from my boyfriends family and are in the midst of renovating. There is a room upstairs which has have a section of the floor removed for a staircase for an upstairs "loft" idea... we want to put the floor back, any suggestions...
Amanda, I'm sure we can help you but we need to see a picture of how this is configured. Is it completely sheetrocked or can you see the framing?
Normally, a floor opening involves cutting the joists out for the opening and installing headers to support the cut ends at either end of the opening. Ideally, you'd simply re-install the same size of joists in the opening and use joist hangers to support them to the header at each end. Some 2x4's can be nailed to the side of the joists that form the edges of the opening to support the edge of the new 3/4" floor sheathing.