Learn French: Je ne recommande pas ce menuisier, dont le travail est lent. - I do not recommend this carpenter, whose work is slow.

When dont is used to mean "whose", French still requires a definite article (le, la, l', or les) in front of the noun that is possessed. You can think of it literally as "of whom the work". Therefore, "whose work" becomes dont le travail.

How would the word order change if "work" was the object of the clause, such as "whose work I dislike"?

This is a common trap! In French, if the possessed noun is the object, the subject of the clause must still immediately follow dont. You would say dont je n'aime pas le travail (literally "of whom I don't like the work"). In our sentence, le travail is the subject of est lent, so it naturally comes right after dont.

What is the difference between a menuisier and a charpentier?

Both translate to "carpenter" in English, but they do different jobs. A menuisier works on interior woodwork like doors, windows, and furniture (similar to a joiner or cabinetmaker). A charpentier works on heavy structural wood, like the framework or roof of a house.

Could we express this idea without using dont?