The floor moldings provide coverage over expansion gaps and create a finished look around the edges of a room, both on the wall and transitioning to other rooms. Floor moldings are key to creating a great look.
Wall Moldings are the trims to go around the perimeter of a room, where floor meets wall
Quarter Round / Shoe Molding
Quarter round moldings are a versatile perimeter molding style that adds a finishing touch, while covering the expansion gap. We use this floor molding as an addition to a wall base, around cabinets and at the base of steps. Quarter round moldings can be color coordinated to your flooring or white to give a uniform look to your home. Shoe molding is much the same as quarter round, having the same 90° angle on the backside but instead of being a perfect quarter radius, its profile is a bit more squat. The main use for shoe molding is to run along the intersection of the baseboard and floor.
These are called transition pieces because they do not help your floor stop at a wall, but rather assist in the transition from one floor to another.