Use pre-drilled track when installing onto a header. The holes on this track are spaced to evenly distribute weight. The holes are not spaced to match the distance between wall studs.
Caution: Always install the header on wall studs. If the header is not installed properly it will compromise the strength of the installation and damage tracks, hardware, and doors.
Use track that requires drilling holes when installing it directly to the wall. This ensures the holes will be perfectly aligned to the wall studs and provides maximum strength for the track system.
Caution: When installing the track directly to the wall, always install on wall studs. If the track is not installed properly, it will compromise the strength of the installation and damage tracks, hardware, and doors.