Installing Shower Door

[Telescopist]

This may be off topic. Plumbing is all in. Everything including tile work is nearly completed; except for installing a Dream Line Bi-Fold I'm uncertain where to position the Wall profile. Image attached (#1) on the tub deck. My thinking is to find the approximate center of the deck and use that as my location. Before I begin drilling holes in the tile I'd appreciate some feedback.

 

[skeezix]

I know this is a bit late, but... I would center the vertical over the tub wall.