Q&A for How to Install a Shower Curtain

It can, if you want. Your shower curtain can go over the inside of the tub, the outside edge, the curb, or outside the curb.

Measure the height of your shower curtain first—this is a great way to make sure your shower curtain rod is placed at the right height.

They face the inside of the tub, as the plastic part (liner) of the curtain goes on the inside of the tub, so the suction cups keep the liner from moving about as you shower.

As high as you want it. As long as there is no water escaping from the shower. The higher the curtain is, the better the condition of the lowermost portion of the curtain will be.

You put the clear liner on the inside, between the shower and your shower curtain. The shower curtain faces directly out into the bathroom, then the clear liner goes right behind it.

I have never seen or heard of a shower curtain being secured to the bottom of the shower tray. Typically shower curtains/liners have magnets that adhere to the tub as well as add weight.

Yes, both sides of the liner are treated for mildew resistance. Some liners are identical on both sides, and some aren't. Look at the top of the liner, where the holes are. The top part looks a lot like a large hem (your shower curtain has the same feature, most likely). If you look at it like a hem, the "front" side will be obvious (compare it with your shower curtain). Just like your shower curtain, the "front" of the hem faces out toward the bathroom.

Most shower curtains are 72 inches square. Depending on where you place the shower curtain rod, you can adjust where the bottom will hang. If, for some reason the placement of the rod cannot be changed and the curtain is too long, you can cut it off at the bottom to have proper length.