A: 1)The Quarter Round molding is used to hide the expansion gap left around walls during installation.
2)The T- molding is used as a threshold in doorways or as a transition strip where the hardwood flooring meets floor or carpet of similar height. T-moldings can also be used to change the direction in which the floor is laid.
3)The Reducer molding is used as a transition from the height of the sub-floor to the height of the hardwood floor.
4)The Stair-nose molding is used to cover the front edge of a stair tread or step. If used on a stair, flooring is installed behind the Stair-nose to cover the horizontal part (the tread) of the stair. The Stair treads molding is a one-piece molding used to entirely cover the structural stair tread.