For a busy Sammamish household with kids and a dog, buy nylon or triexta. Polyester is the value pick for bedrooms and low-traffic rooms, and wool is the premium pick when you want the best look and feel and can keep pet accidents off it. Fiber decides how a carpet wears, how it handles stains and how it feels. Density and pad decide the rest. Installation labor is the same $0.99 per sq ft whichever fiber you choose, so the fiber only moves the material line. We bring all four to your house so you can compare them on your own floor.
Every carpet store sells the same four fibers under a hundred brand names, and the pitch usually leans toward whatever is on promotion. Fiber is the single most important choice you make about a carpet, more than color or style, because it decides whether the upstairs hall in your Klahanie or Trossachs house still looks good after eight years of soccer cleats and a golden retriever. Here is how the four compare with the marketing stripped away.
The four fibers, honestly
The workhorse
Nylon
Nylon has the best resilience of any synthetic: the fibers bend under foot and spring back for years, which is why it resists matting in halls and on stairs. It is not naturally stain resistant and relies on a topical treatment that wears off, so spills need quick attention. Type 6,6 is the premium version. Expect twelve to fifteen years in a family home.
The value pick
Polyester (PET)
Polyester is inherently stain resistant, takes bright colors and is often made from recycled bottles. It costs the least of the four. Its weakness is resilience: the fibers crush and mat in traffic lanes, so a plush polyester in a busy hall looks tired in five to seven years. Excellent in bedrooms and guest rooms.
The newer hybrid
Triexta (PTT)
Triexta is a polyester cousin engineered to fix polyester's problems. Its stain resistance is permanent and built into the fiber, it is soft, and its resilience sits close enough to nylon for most homes. It is partly corn-based. Oily soil is harder to clean out of it, and it costs about what mid-grade nylon does.
The premium natural
Wool
Wool is naturally resilient, flame resistant, hides soil well and can last twenty-five years. It feels and looks like nothing else. It is also the most expensive fiber, absorbs moisture, is damaged by pet urine and harsh cleaners, and sheds for the first months. It wants a firm pad and a dry room.
Fiber by fiber comparison
| Trait | Nylon | Polyester | Triexta | Wool |
|---|---|---|---|---|
| Resilience in traffic | Excellent | Fair | Very good | Excellent |
| Stain resistance | Good with treatment | Excellent, except oils | Excellent, permanent | Fair; sensitive to urine |
| Softness | Good; soft versions available | Very soft | Very soft | Soft, natural hand |
| Fade resistance | Good, solution-dyed is best | Excellent | Excellent | Fair in direct sun |
| Relative cost | Mid to high | Lowest | Mid | Highest |
| Typical life in a family home | 12–15+ years | 5–8 years | 10–15 years | 20–25 years |
| Best rooms | Stairs, halls, family rooms | Bedrooms, guest rooms, offices | Kids' rooms, family rooms, homes with pets | Living rooms, main bedrooms, formal spaces |
Within each fiber, face weight, twist and density change performance more than the brand does, and a dense polyester can outlast a thin nylon. Relative cost here is material only; our installation labor is $0.99 per sq ft for all four.
Scope your Sammamish carpet project
Carpet Installation Calculator
Real Wills Flooring labor pricing. Carpet and pad are quoted separately once you pick the style you like.
Labor does not care which fiber you pick: $0.99 per sq ft stretched in over pad, $30 per step, plus $0.45 per sq ft to take the old carpet out. A 1,400 sq ft upstairs in Klahanie with 16 stairs is 1,400 x $0.99 + 16 x $30 = $1,386 + $480 = $1,866 in labor. Wool or polyester, that number is identical. What changes is the carpet and pad quote, which we write up with the samples on your floor.
Fiber by room in a Sammamish plateau home
- Stairs and upstairs hallThe hardest-working carpet in the house. Nylon, in a dense cut pile or a tight loop, over a firm pad. Triexta is a fine second choice. Skip polyester here; the traffic lane will show first.
- Kids' bedrooms and playroomSpills, markers and the occasional sick night. Triexta's built-in stain resistance earns its keep here, and it is soft enough for floor play. A patterned or flecked style hides what does get through.
- Bonus room over the garageBig, often cooler, used for movies and sleepovers. A dense polyester frieze is a sensible value choice: the room is used hard but not walked through constantly, so matting is less of an issue.
- Main bedroom and formal living roomLow traffic, high expectations. This is where wool or a soft premium nylon makes sense. Keep the dog's bed elsewhere if you choose wool, and use a flat rubber or fiber pad.
- Mudroom-adjacent family roomWet dog from Beaver Lake or Pine Lake, muddy cleats from the trail. Solution-dyed nylon or triexta in a mid-tone, with a moisture-barrier pad so accidents do not reach the subfloor.
Nylon or triexta? The question we get most
Nylon
Pick nylon when
- Stairs and halls carry most of the traffic
- You want the longest proven track record for resilience
- You are fine renewing a stain treatment after professional cleaning
- You prefer a slightly crisper, less silky hand
Triexta
Pick triexta when
- Young kids and pets make stains the bigger worry than matting
- You want softness without giving up much durability
- You do not want to think about stain treatments wearing off
- The room is a bedroom, playroom or family room rather than a stairway
Fiber is not the whole story: Two nylon carpets can differ more from each other than nylon differs from polyester. Face weight, pile density and twist level decide how a carpet actually wears. When you compare samples, bend them back: if you see the backing easily through the pile, the carpet is thin regardless of fiber. We bring the density spec with every sample to a Sammamish carpet estimate.
Fiber mistakes we see in Sammamish homes
- Soft polyester on the stairs. It feels wonderful in the showroom and mats on the top three treads within two years. Stairs need resilience first.
- Wool in a house with a puppy. Urine changes the dye in wool and the mark is permanent. Wait until the dog is reliably trained, or choose a synthetic and save the wool for later.
- Non-solution-dyed nylon in a south-facing bonus room. Big plateau windows fade carpet in stripes where the sun lands. Solution-dyed fiber, with color running through the strand, holds up far better.
- Trusting the fiber name alone. Ask for face weight and density in writing. A common Reddit thread on carpet quality comes down to exactly this: two carpets, same fiber, very different construction.
- Pairing a good fiber with a cheap pad. A quality nylon on a low-density pad wears like a cheap carpet. Match the pad to the fiber and the room.
Carpet fiber questions from Sammamish families
From Pine Lake to Sahalee, and from the fiber debates on Reddit.
Which carpet fiber is the most durable?
Is triexta better than nylon?
Is polyester carpet bad?
Is wool carpet worth the money?
What carpet fiber is best for pets?
Does the fiber affect how much the carpet costs?
Compare all four fibers on your own floor
We bring nylon, polyester, triexta and wool samples to your Sammamish home, measure every room and stair, and write one firm quote for the whole job.
Wills Flooring serves Sammamish, Everett, Seattle, Lynnwood, Edmonds, Kirkland, Snohomish and the rest of Snohomish and King County from our Lynnwood showroom. See our carpet installation service, published price list, the best carpet for pets, whether wool carpet is worth it and cheap vs quality carpet.
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