De or het spoorbedding?

The correct Dutch article is:

de spoorbedding

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

How to use spoorbedding

the spoorbeddingde spoorbedding
this spoorbeddingdeze spoorbedding
that spoorbeddingdie spoorbedding
our spoorbeddingonze spoorbedding
your spoorbeddingjouw spoorbedding
every spoorbeddingelke spoorbedding
which spoorbedding?welke spoorbedding?
a big spoorbedding / the big spoorbeddingeen grote spoorbedding, de grote spoorbedding