Visions 56-60 in. W x 0 in. D x 72 in. H Semi-Frameless Sliding Shower Door in Chrome

It really depends on your skill set. My brother-in-law installed it but he does have more experience than myself. One thing is for certain: You will need two people when it is time to position the glass panels.

Rollers are at the top only. The bottom is secured and with a push of a button, they are released for easy cleaning.

I installed this door on a 55 1/2" opening. It works fine. But I think you will have to do something to make up the 1/2" difference because the doors must butt squarely to close properly. There is a magnet on the edge.

The recommended minimum opening is 56", but I asked the company if 55 1/2" would work. They said it would, but obviously the opening would be smaller. I believe the same would apply in your case. There is nothing mechanically to prevent you from installing into a smaller opening then 56"

No. It is not suitable

no

Securing to the single stud is adequate. The doors roll in the frame which doesn't add stress on the ends.

We used an onyx base and it worked fine.

A couple of things to consider. It will work with other shower bases as long as the curb is wide enough for the frame to sit on. By wide enough I'm speaking of the dimension of the curb top as measured from outside the shower to inside the shower, typically 2 to 4 inches. Another consideration would be the shape of your shower base where the curb meets the walls. On some one piece, integrated shower kits, the curb curves into the vertical wall. Since the shower door frame makes a 90 degree angle at these points, you would have to trim the frame to match the curve of your curb to wall transition.

I would say no. But that is an opinion based on the way the doors must match snugly in the middle to keep water in. It's only a magnetic "latch", so they need to meet squarely.