De or het roosterplanning?

The correct Dutch article is:

de roosterplanning

Rule Words ending in -ing: almost always de. See the rule

This word is not in the word lists we use to double-check answers.

How to use roosterplanning

the roosterplanningde roosterplanning
this roosterplanningdeze roosterplanning
that roosterplanningdie roosterplanning
our roosterplanningonze roosterplanning
your roosterplanningjouw roosterplanning
every roosterplanningelke roosterplanning
which roosterplanning?welke roosterplanning?
a big roosterplanning / the big roosterplanningeen grote roosterplanning, de grote roosterplanning