(Side note) I had a boss who would always sell people on wiremold. He would say the word in a nasaly voice that reminded my of my mother telling me to clean my room. And to this day, I cring everytime I hear the words: Wire...mold...
Mark Heller "Well - I oughta....." -Jackie Gleason
For a log home or post and beam, it's the next best thing to sliced bread, especially for getting to ceiling luminaires surface mounted on the underside of 1 inch planks that form the floor above. The Plugmold product is also great for getting the required receptacle outlets in lofts where 75% of the "wall space" is decorative rail and the floor is too shallow for a floor box.