If you’re using a carpet runner instead of a traditional carpet, pay attention to your width measurements. Instead of measuring the total width of your staircase with 2 added inches for foldover, simply measure the width you’d like the runner to cover. Runners generally come in standard sizes, so you may need to approximate what would look best in your space.

If the installer is unwilling to fix the problems and you’re not interested in seeking remediation, you could hide a visually unpleasant floor. This will only work if the floor is structurally sound and the only issue you have is the way it looks. The easiest way to do this is to use large area rugs. You can also paint the floor, although that’s a labor-intensive job if you want to go the DIY route.

Nylon carpet is widely considered one of the most durable and longest-lasting options, typically lasting 12 to 15 years. Its durability comes from its high resistance to wear, tear, stains, fading, and abrasions. It also resists liquid spills, insects, mold, and mildew, making it ideal for high-traffic areas like living rooms and hallways. For even greater longevity, frieze or Berber carpets are excellent choices that can last up to 20 to 25 years.

Beyond the material, a carpet's construction is key to its durability. Low-pile carpets with short, tight loops hold up better against wear than high-pile options. As a synthetic material, nylon is available in a vast range of colors and styles and often feels remarkably soft.

It’s a good idea to install a rug pad under the carpet for your stairs. To make the pad fit, you’ll need to cut one section for each stair tread that’s about one inch narrower than the stair runner so that it won’t be visible once the carpet is installed on top.