De or het steenbestrating?

The correct Dutch article is:

de steenbestrating

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

How to use steenbestrating

the steenbestratingde steenbestrating
this steenbestratingdeze steenbestrating
that steenbestratingdie steenbestrating
our steenbestratingonze steenbestrating
your steenbestratingjouw steenbestrating
every steenbestratingelke steenbestrating
which steenbestrating?welke steenbestrating?
a big steenbestrating / the big steenbestratingeen grote steenbestrating, de grote steenbestrating