Best Carpet for Stairs: Fibres, Pile, Installation Styles and Stair Runners

Choosing the best carpet for stairs is not the same as choosing carpet for a bedroom. A bedroom carpet gets gentle traffic spread over a large area. Stair carpet takes every trip up and down on a few square feet, and most of it lands on the front edge of each step. A carpet that looks great in a bedroom can be matted and grey on the stairs within a short time.

This guide covers the fibres and pile styles that hold up on stairs, berber and pets, the two main ways stair carpet is installed, carpet runners on stairs, the pad underneath and the safety details that matter on a staircase.

Why stairs are hard on carpet

On a flat floor, a footstep pushes straight down on the carpet. On a stair, the foot lands near the nosing, the rounded front edge of the tread, and then pushes off. The carpet is bent around the nosing, crushed and scuffed in one motion. That is why stair carpet usually wears first at the nose, and why worn stairs often look bald along each front edge while the rest of the carpet looks fine.

Bending the carpet over the nose also opens up the pile. On a loose or low-density carpet, you can see the backing between the tufts along the edge. Installers call this grinning. A dense carpet grins less, because the tufts are packed closely enough to cover the backing even when bent. That one fact explains most of the advice below. Density matters more on stairs than anywhere else in the house.

Best carpet for stairs: choosing the fibre

Nylon is the usual first choice for stairs. It is the most resilient common carpet fibre, which means it springs back after being crushed, step after step. It is also widely used in commercial carpet for the same reason. Most nylon carpets for homes have a stain-resistant treatment, but check the label.

Wool is natural, durable and resilient, and it looks rich on a staircase, especially as a runner. It costs more and needs more careful cleaning, because some stains and cleaners affect wool differently from synthetics.

Triexta is a newer fibre in the polyester family. Makers promote it for stain resistance and softness, with better resilience than standard polyester. It can be a reasonable stair carpet. Check the maker's wear rating and warranty for stairs.

Polyester (often called PET) is soft, holds colour well and is good value. It is less resilient than nylon, so it tends to mat sooner in heavy traffic. It is a better fit for bedrooms than for a busy main staircase.

Olefin (polypropylene) resists moisture and fading and is inexpensive, and it is common in berber loops. It crushes more easily than nylon and is less suited to stairs that carry a lot of traffic.

Our guide to carpet types covers each fibre in more detail.

Best carpet for stairs: pile height, density and twist

Once you have a fibre, look at how the carpet is built. Three things matter on stairs.

Low to medium pile. A shorter pile bends around the nosing more neatly and grins less. It also gives a steadier footing. Long shag and deep plush look soft in the store, but on stairs they bunch up at the nose, hide the edge of the step and can feel unstable underfoot. Most installers steer people away from them on stairs.

High density. Bend a sample back over your fingers, the way it will bend over the nosing. If you can see a lot of backing between the tufts, it will grin on the stairs. If the face stays closed, it is a better stair carpet. This simple test tells you more than the pile height on the tag.

Tight twist. In cut pile carpet, each tuft of yarn is twisted and heat-set. A tighter twist holds its shape longer and resists untwisting and matting at the nose. Textured cut pile and frieze, which have more twist, usually wear better on stairs than smooth plush, and they hide footprints too.

Patterns are worth a thought as well. A small, busy pattern hides wear and soil. A large pattern or stripe has to be lined up on every step, which takes more time and material, and any small misalignment shows. Plain or subtly textured carpet is the easiest to install well on stairs.

Berber carpet on stairs

Berber is a loop pile carpet, where the yarn loops back into the backing instead of being cut. A dense, low berber can be very durable on stairs, because the loops resist crushing. Many people choose it for that reason. It does have drawbacks on a staircase, and they are worth knowing before you order.

Loops bend open as they wrap over the nosing, so a loose berber can grin badly at the edge of each step. Berber also needs a thin, firm pad, because too much give lets the backing flex. And loops can snag. A pet's claw or a sharp object can catch a loop and pull it, and in some loop carpets a pulled loop can run along the row, which is often called zippering. A snag on a stair nose is very visible.

If you like the look, choose a dense, low, tightly made loop and ask the installer about it before ordering. Stair carpet is fitted step by step, and some loop carpets are harder to tuck neatly than cut pile.

Stair carpet and pets

Dogs and cats are hard on stairs. They run up and down several times a day, and their claws catch on loops. For homes with pets, a dense cut pile in a stain-resistant synthetic fibre is usually the safer choice. Avoid large loops. A pad with a moisture barrier film helps keep accidents out of the pad on landings. Older dogs also need grip: carpet gives more traction than a slippery hard tread, which is one reason many owners keep carpet or a runner on the stairs. Our guide to the best flooring for dogs covers the rest of the house.

Waterfall vs Hollywood stair carpet

There are two main ways to install carpet on stairs, and the difference is how the carpet meets the nosing.

Waterfall style runs the carpet over the nosing and straight down to the back of the next tread, without tucking it under the nose. It is quicker to install and works with most carpets. The face of each step looks flat and plain, and there is a small hollow behind the carpet under the nose.

Hollywood style, also called wrapped or upholstered, pulls the carpet tight around the nosing and fastens it underneath. The carpet follows the shape of each step, which gives a tailored, fitted look. It takes longer, and not every carpet bends tightly enough to wrap well.

Cap-and-band is a fitted method used most often on curved or bullnose bottom steps. The top of the step and the curved riser are covered as separate pieces cut to fit. Our guide to stair nosing describes the three methods alongside the hard-floor options.

Either way, the carpet is held by tack strip at the back of each tread and the base of each riser, and stapled where needed. The pile should run down the stairs. Then it wears evenly and looks the same colour from the bottom of the flight. Each step is measured and fitted by hand, which is why stairs take longer than a room of the same area and are priced by the step or the flight. See carpet installation cost in Ottawa for typical prices.

Carpet runners on stairs: installing a runner on hardwood

A carpet runner covers the middle of the stairs and leaves wood showing at each side. It is popular on hardwood stairs because it keeps the look of the wood while adding grip, softness and quiet. It also protects the centre of each tread, where the wear happens. Here is how a stair runner installation usually goes.

The stairs come first. The wood that shows at the sides has to be in good condition and finished, because it stays visible. If the treads are rough or mismatched, they may need replacing or refinishing before the runner goes on. Our guide to hardwood stairs covers the options.

Width and centring. Most runners leave an even reveal of a few inches of wood on each side. The width is chosen to look balanced with the stair, and it has to stay centred from top to bottom, including on landings. Runners come in set widths, or can be made from broadloom carpet cut to width with the edges bound or serged by a carpet shop.

Pad. A runner is usually installed over a thin, firm pad cut a little narrower than the runner itself. That way the edges sit flat and don't look puffy. The pad stays hidden under the carpet.

Fastening. The runner is held with staples or tack strip, mostly in the crotch where tread meets riser and under the nosing. Decorative stair rods, brass or black across the base of each riser, are mostly for looks today. The real hold comes from the fasteners underneath. Runners can be installed waterfall or Hollywood style, the same as wall-to-wall stair carpet.

Landings and turns. On a straight flight, a runner is simple. Landings, winders and pie-shaped steps take more planning. The runner has to be folded or joined to turn the corner while staying centred and keeping the pattern straight.

The right underpad for stair carpet

Stair carpet needs a firm, dense pad, often thinner than the pad in the rest of the house. A soft or thick pad lets the carpet roll and shift at the nosing, which wears it faster and makes footing less secure. Dense rebond, frothed foam and flat rubber are common choices. On each step, the pad usually covers the tread and wraps over the nose, stopping short of the tack strips. Check the carpet maker's pad requirements, which may differ for stairs. Our guide to carpet underpad explains the types and why density matters more than thickness.

Safety on carpeted stairs

A staircase is the one place where a flooring detail can cause a fall, so a few points matter more than looks.

The carpet must be tight and secure on every step, with no loose edges at the nose or the sides. A runner that shifts, a lifted corner or a staple that has pulled out is a trip hazard and should be fixed right away. Loose stair carpet is never a cosmetic problem.

The edge of each step should be easy to see. A carpet with some texture or a slight change in tone at the nosing helps, and so does good lighting from top to bottom. Very busy patterns and uniform dark colours can make the edges harder to judge, especially for older people.

Keep the build-up thin and even. Building codes require consistent riser heights on a staircase. Stair carpet adds a small, even thickness, so it rarely changes that. Mixing materials can, though. If the landing is a hard floor and the steps are carpet, check the top and bottom steps. A thick pad also makes the nose spongy. Handrails, balusters and any structural repairs are separate work for a carpenter or stair company.

Replacing old stair carpet

When old stair carpet comes up, look at what is underneath before deciding what goes back. Many builder-grade stairs are made of construction lumber, meant to be covered. Those stairs suit new carpet or a runner over new treads. Stairs with good hardwood treads can take a runner. Some people switch to a hard floor completely; see stair nosing for vinyl and laminate stairs and hardwood stairs for wood.

The old carpet, pad, tack strip and every staple come out. Squeaky treads are best fixed now, while the stair is bare. Agora installs carpet, hardwood, vinyl, laminate and tile on stairs; see our stair installation and carpet installation pages, or request a free estimate.

Frequently asked questions