For my layout, I use a #4 wood screw in whatever length holds the track down properly. I start out with 3/4 inch length and if it loosens up, go to 1 inch, 1 1/4 inch, or all the way up to 1 1/2 inch. The last two sizes go through the ceiling tile base that I use into the plywood below, so the track isn't going anywhere.
|