Hi,

This is not an unusual fear in large dogs. They like firm footing rather than the slippery sensation
of wood or linoleum. With patience most dogs can be taught to overcome this.

First you should determine what is the major motivator for your dog. Is he food oriented? Or, perhaps ball oriented?
After determining this, you should use this knowledge to help him conquer his phobia.

Using food as an example, you would sit with him at the edge of your carpet. Hold the treat over the wood floor and have him
reach to get it. Then start placing treats further and further on the wood surface until he eventually has to step on the floor to
get the treat. You should go very slowly with this desensitizing process and expect to spend days gradually moving him closer
and onto the wood floor. Correct him if he shows fear with a stern voice. Under no circumstance should you try and comfort him
if he is acting fearful.

After he has reached the point that he will voluntarily place two paws on the wood surface, you would finally take him on the leash and
while remaining calm you would run him across the wood floor at your side. If he hesitates, correct him.

Finally, start walking him across the wood floors and have him sit on the floor. At this point his fear should be conquered.

Good Luck!

Sandy