What type of subfloor decking should i use? what thickness? I am confused....... I have been told alot of stuff use t&g or use strudi floor or blah blah blah..... thanks mechrus

Adding a second floor. Header joist sits on the cap plate, joists are 2x10x14" and are nailed to the header 16" OC. I then place the floor 4'x8 down and the wall goes up over all the above. Build wall laying down and then raise it up. When the wall is up I nail it to the floor and the header. Since the header is 2x10 and the wall is 2x4 I don't understand how to nail it so that it is not at the edge of the header ? and don't I have to nail the wall to the joist ? what size nails should I be using on each of theses ? A 2x10 on the 2x4 only leaves 2" for the joist to set on. Should I be using joist hangers ? I hope I got the names of all this correct but I think you get the point I hope. 2pyrs :confused: