What kind of shower curtain do I need for a really small, walk in shower?

Take a measuring tape and measure height, width...........and you will know what curtain you can afford and be able to look over many styles for your own personal taste......also if no rod above, purchase one that extends and turn it tight to stay up good ....good luck

Get a plastic curtain as you can cut that with scissors to any size you wish.

Hang a piece of cloth with a wire.

You're best bet would be to make one.
Go to amazon and type in "narrow shower curtain".

You should be able to find some that size, online for sure, they should be in stores too.

A shower curtain is 70" to72" wide for a typical 60" tub size shower. A stall shower curtain is about 48" wide. If you are unable to find a shower stall size shower curtain, you can very well use a tub size shower curtain and cut it down to stall size. If you get a plastic shower curtain, all you do is cut it and you are done. If you get a fabric style shower curtain, then you will have to get it cut and hemmed by a seamstress or you can do it yourself.

Sure, you can have a custom shower curtain made, but it will cost less to get one ready made. A regular shower curtain rod may not down size to the size you need. Therefore, you may have to shop for a good spring tension rod in the drapery department. Get the thickest one you can find. The spring tension rod size you need is the one that telescopes from 28" to 48".

Buy a normal shower curtain and the rings to attach it to the rod. If there is no rod there you buy an expanding one, put it in the space and twist it until it is tight against the sides.
SInce the shower curtain is on rings, and you pull it open or closed, it does not matter how small the space is because the curtain folds, just like any other curtain. You do not need to cut anything.

Just grab a cheap one from the dollar store and cut it to size if needed