No because I didn't realize there was a significance. I'll look into ordering some online. I feel confident we don't have those readily available in town.
Yes, I thought you might have special ordered one. It would already be adjusted to the proper distance from the wall.
You also need to make sure the bar does not rotate at all. If DD has one leg up on it and she's doing a stretch and the bar turns away from her and she slides, she could pull a leg or pelvic muscle.
Ideally, the barre should not rattle loosely either. I can't stand the free standing bars which were assembled badly & every time I grabbed onto the barre, it rattled. Also, another dancer who constantly jostled the whole frame while we were all dancing, was always quite annoying.

There is a reason the barres are mounted to be
stationary against the wall. I couldn't stand when I arrived late to class & ended up on the free standing barres.
Maybe, watch some videos on
Youtube of ballet barre exercises, to see some of the barre routines. This will give you an understanding of working on the barre and what it has to be able to do.
Ideally, it should also be a certain diameter around, so DD can grab it easily and for the back of her Achilles's tendon to comfortably rest & grab onto the barre easily. You want it to be the same size as her classes, which would be a standard size diameter and fit into the brackets.
These directions, of course, are because you are going to the effort to mount a barre. For those of us who didn't have a barre at home, we simply used the back of a wooden chair, about the appropriate height, tossed on a few old Sears catalogs so the chair wouldn't slide, or simply pushed up against the wall so it wouldn't move. The edges of the chair did hurt the Achilles's tendon over time unless we placed a towel over it. But other than that, it works effectively. So don't stress too much over it all.
