I go about 8 inches along the joists. This isn't precise, my hand span from thumb tip to little finger tip is a little over 9 inches so a slightly slack hand is about 8.
Seems to be enough. Modern "monolithic" construction includes construction adhesive it does keep squeaks minimized. If I was Han Solo I'd probably pet my wookie ----- Original Message ----- From: Dan Rossi To: blindhandyman@yahoogroups.com Sent: Wednesday, March 31, 2010 6:10 PM Subject: Re: [BlindHandyMan] orientification I got tung and groove OSB. I ordered quote 3/4 tung and groove plywood quote but they delivered OSB. I had been talking to the guy I was ordering from, and told him it was for a sub floor. I also mentioned that I was not an experienced carpenter, and he may have made some assumptions. I think I would have preferred plywood. I went with 3/4 just because I am being paranoid about the rigidity of the floor because these are 2X4 joists on the flat with a bunch of blocking. The joists feel very solid while I am walking around on them, but I did not glue the blocking to the cement floor, so I am hoping the decking will help keep the joists rigidly in position. What kind of screw or nail spacing should I use along the joists? -- Blue skies. Dan Rossi Carnegie Mellon University. E-Mail: d...@andrew.cmu.edu Tel: (412) 268-9081 [Non-text portions of this message have been removed]