How do you say dry wall in french?

There isn't a direct one-word translation for "drywall" in French. It's usually translated as:

* Plaque de plâtre: This is the most common and literal translation, meaning "plasterboard."

* Plâtre: This simply means "plaster," and is sometimes used on its own to refer to drywall.

* Cloison sèche: This means "dry partition" and is used when referring to the whole system of drywall, including the framing.

So, depending on the context, you can choose the most appropriate translation.