Add texture and warmth to your staircase with a natural fibre runner carpet for staircases - PLUS - Grab our industry insider buyers tips Natural fibre stair runners add great texture and warmth to an otherwise, often forgotten, staircase. We discuss sisal stair runners, jute stair runners, seagrass stair runners and other natural fibre stair runner alternatives for you to create a custom stair runner on your staircase. Read on to discover our stair runner carpet ideas