Hallway carpet transition to wood step

Q: What is the best way to do a carpet transition to wood step, from oak top step to carpet? We are replacing the plywood treads with oak treads and repainting the risers. The top of our stairs ends in a hallway covered in carpet.

Thanks.

A: I would install an oak stair nosing. You can get either 3/4 thick or 3/8′. Butt the carpet up to it.