I need to find a threshold or transition piece to connect a ceramic tile floor with a wood floor. When I planned the tile install, I assumed I would use a 1" by 3" marble sill, and left a 3" gap . I wound up having to put Cementboard down before the tile, and noe the tile floor is appx 11/4 inches higher than the wood floor. Where can I buy a wood threshold to bridge this gap. I thought of using the marble sill, and then a piece of 3/8 or 1/2 " door stop or quarter round to transition up to the tile, but don't like the idea of gluing the wood to the marble. Any ideas would be appreciated.