admin answers:

I have dogs that are litter trained. They do not use the same type of box as a cat would. The dogs would eat the cats litter
and it will get all over the house. I tried dog litter, it’s big comressed pieces of foam. They eat that to.

What we did was buy a condo box at the pet store. It’s a litter
box for dogs. I put newspaper in the bottom and a puppy pad. I went to home depot and bought a grate to put on top of it, the kind that are used in ceilings. I cut the crate to fit
the box perfectly. I put two layers of the grate in the condo box. Now the point of the puppy pads is to attrack the dog
to pee there. The grates which my husband thought of was
a great idea, because when the dog pees he won’t get it
on his paws. When the dog uses the box, make sure you
praise him big time, and give it a treat. That way you will
be rewarding good behaviour. My dogs have been trained
for years and it’s so much better than taking them outside
especially on bad days.