Nylon carpet is better than polyester for durability, resilience, and high-traffic areas, while polyester wins on softness, stain resistance, and upfront cost. If you are carpeting a living room, hallway, or stairs, nylon is the right call. If you are doing a bedroom or guest room on a budget, polyester is a perfectly reasonable choice. The real answer depends on where the carpet is going and how long you need it to last.
We install both fibers every week in homes across San Diego, and we see firsthand how each performs over time. This guide breaks down the polyester vs nylon carpet comparison based on real-world performance, not marketing claims. For local install pricing, see our San Diego carpet installation page; for the full picture on choosing carpet, our living room carpet guide covers face weight, density, and pile.
- Nylon wins: living rooms, hallways, stairs, family rooms (high traffic)
- Polyester wins: bedrooms, guest rooms, formal sitting rooms (light traffic), tight budgets
- Triexta wins: pet households, kid-heavy homes (built-in stain resistance)
- Lifespan: Quality nylon 10-15 yrs · polyester 5-10 yrs · triexta 10-15 yrs
- Cost (installed): Polyester $3-$4.50 · nylon $4.50-$7 · triexta $5-$8
- Worst common mistake: Putting polyester in a living room or hallway. It will mat in 3-5 years.
What Is Nylon Carpet
Nylon is a synthetic polymer fiber that has been the industry standard for residential carpet since the 1960s. It is manufactured by companies like Invista (who makes Stainmaster nylon), Shaw (Anso), and Mohawk (Continuum). Nylon accounts for roughly 60 percent of all carpet sold in the United States.
The defining characteristic of nylon is resilience. When you step on nylon carpet, the fibers compress under your foot and then spring back to their original shape when the pressure is released. This bounce-back ability is what makes nylon last longer than other synthetic fibers in high-traffic areas. A quality nylon carpet in a living room or hallway can look good for 10 to 15 years.
Types of Nylon Carpet Fiber
Not all nylon is created equal. There are two main types:
- Type 6 nylon is the standard grade. It is durable and affordable but slightly less resilient than Type 6,6. Most builder-grade and mid-range carpet uses Type 6 nylon.
- Type 6,6 nylon has a tighter molecular structure that makes it more resilient and harder wearing. Stainmaster and other premium nylon brands use Type 6,6. It costs more but performs better under heavy foot traffic.
Nylon Carpet Pros
- Best resilience of any synthetic carpet fiber
- Longest lifespan in high-traffic areas (10 to 15 years)
- Can be cleaned effectively with hot water extraction
- Wide range of styles and colors
- Good soil resistance when treated
Nylon Carpet Cons
- Higher upfront cost than polyester ($4.50 to $7.00/sqft installed)
- Stain resistance requires topical treatment that wears off
- Can generate static electricity in dry conditions
- Not as soft as polyester or triexta out of the box
What Is Polyester Carpet
Polyester (PET) carpet is made from synthetic polyethylene terephthalate fiber. It became popular in the 1990s as a budget-friendly alternative to nylon. Modern polyester carpet is often made partially from recycled plastic bottles, which gives it an environmental marketing angle.
Polyester's strengths are softness and color vibrancy. The fibers accept dye extremely well, producing rich, vivid colors that resist fading from sunlight. Polyester is also naturally hydrophobic, meaning it repels water-based stains better than untreated nylon. It feels noticeably softer underfoot, which is why it is popular for bedrooms.
Polyester Carpet Pros
- Lower cost ($3.00 to $4.50/sqft installed)
- Softer feel underfoot
- Naturally stain resistant to water-based spills
- Vibrant color options that resist fading
- Often made with recycled content
Polyester Carpet Cons
- Poor resilience - fibers crush and do not bounce back
- Shorter lifespan in traffic areas (5 to 7 years)
- Attracts and holds oil-based stains
- Matting and crushing in walkways
- Cannot be effectively restored once matted
Polyester vs Nylon Carpet: Head-to-Head Comparison
Here is how nylon vs polyester carpet stacks up across every factor that matters:
| Factor | Nylon | Polyester | Winner |
|---|---|---|---|
| Durability | 10-15 years | 5-7 years (traffic areas) | Nylon |
| Resilience | Excellent bounce-back | Poor - fibers crush | Nylon |
| Stain resistance | Good (with treatment) | Good (water-based only) | Tie |
| Oil stain resistance | Moderate | Poor - holds oil stains | Nylon |
| Softness | Moderate | Very soft | Polyester |
| Installed cost | $4.50 - $7.00/sqft | $3.00 - $4.50/sqft | Polyester |
| Color options | Wide range | Wider, more vivid | Polyester |
| Fade resistance | Good | Excellent | Polyester |
| Cleaning ease | Responds well to steam | Harder to deep clean | Nylon |
| Maintenance cost | Lower long-term | Higher (earlier replacement) | Nylon |
| Eco-friendliness | Standard synthetic | Often recycled content | Polyester |
| Lifespan (overall) | 10-15 years | 5-10 years | Nylon |
Cost Over Time
The upfront price difference between nylon and polyester is about $1.50 to $2.50 per square foot. For a 300 square foot living room, that is $450 to $750 less for polyester. But if the polyester crushes out in 5 years and the nylon lasts 12, the nylon is cheaper per year of use. For a living room at mid-range pricing:
- Polyester: $1,200 installed, lasts 5 years = $240/year
- Nylon: $1,800 installed, lasts 12 years = $150/year
Nylon costs 38 percent less per year than polyester in a high-traffic room. This math flips in low-traffic rooms where polyester can last 8 to 10 years.
Stain Resistance Compared In Real Life
Stain charts on manufacturer websites tell only half the story. Here is what each fiber actually handles in a real household:
| Stain Type | Polyester | Nylon (treated) | Solution-Dyed Nylon |
|---|---|---|---|
| Coffee, tea, wine | Naturally resists oil-based stains; treats well with quick blotting | Stainmaster topical treatment handles well; wears off in 3-5 yrs | Excellent; treatment is in the fiber, no wearing off |
| Pet urine | Resists initial stain; subfloor-level damage if pad isn't waterproof | Holds up if treated; ammonia odor harder to remove | Best for pets; can be cleaned with bleach without color loss |
| Mud, dirt, food | Easy to clean while fresh | Easy if treated; vacuums up well | Same as treated nylon |
| Oil and grease | Polyester's weak point; absorbs oil readily | Resists better than polyester | Best of the three for grease-prone households |
| Sun fading | Strong UV resistance | Average; can fade in west-facing rooms | Excellent; color is built into the fiber |
Solution-Dyed Nylon and PET Polyester
Two manufacturing methods change the game inside each fiber category, and they are worth understanding before you shop.
Solution-dyed nylon has color added to the molten nylon before the fiber is extruded. The result: every fiber is the same color all the way through, like a carrot. You cannot bleach the color out, fade it with UV, or strip it with cleaning chemicals. Solution-dyed nylon is what the best pet-rated and outdoor-rated carpets are made from. It costs 10 to 20 percent more than standard piece-dyed nylon and is worth every cent if you have pets, kids, or strong west-facing sunlight.
PET polyester (polyethylene terephthalate) is made from recycled plastic bottles. It is the dominant form of polyester carpet sold today. PET polyester is the most stain-resistant fiber in its raw form, and it is the most environmentally friendly option (high recycled content). The performance trade-off versus nylon is the resilience problem: PET still mats faster in heavy traffic. For low-traffic rooms or budget-conscious projects, PET polyester is fine.
Triexta: The Third Option Worth Considering
If you are deciding between polyester vs nylon carpet, there is a third fiber that splits the difference. Triexta (marketed primarily as Mohawk SmartStrand) was officially classified as its own fiber category by the FTC in 2009. It is technically a polyester variant (polytrimethylene terephthalate) but performs very differently from standard PET polyester.
How Triexta Compares
| Factor | Nylon | Triexta | Polyester |
|---|---|---|---|
| Durability | Best | Very Good | Fair |
| Stain resistance | Good (topical) | Excellent (built-in) | Good (water only) |
| Softness | Moderate | Very Soft | Soft |
| Cost/sqft installed | $4.50 - $7.00 | $5.00 - $8.00 | $3.00 - $4.50 |
| Pet performance | Good | Best | Fair |
| Resilience | Excellent | Good | Poor |
Triexta is an excellent middle ground. It is softer than nylon, more durable than polyester, and has the best built-in stain resistance of any carpet fiber. The stain protection is permanent because it is engineered into the fiber rather than applied as a topical coating.
Best Carpet Fiber for Each Room
Here is our straightforward recommendation for which fiber to put where:
Living Room
Nylon or triexta. This room gets the most daily traffic, so resilience matters. Polyester will crush in the main walkways within a few years.
Master Bedroom
Any fiber works here because traffic is light. Polyester gives you the softest feel at the lowest price. If you want longer life, triexta is a nice upgrade.
Kids' Bedrooms
Triexta. Kids spill things, and triexta's built-in stain resistance handles juice, food, and art supplies without permanent damage.
Stairs and Hallways
Nylon only. These are the highest-traffic, highest-wear areas in your home. Polyester should never go on stairs because it crushes and becomes slippery within 2 to 3 years. Nylon's resilience keeps the fibers upright and maintains traction.
Basement
Nylon or polyester, depending on use. If the basement is a playroom or family room, go with nylon. If it is a spare room or storage area, polyester is fine. In either case, make sure the carpet has moisture-resistant backing and the subfloor has a proper vapor barrier.
Rental Property
Polyester. You want the lowest upfront cost with acceptable appearance. Renters will not maintain carpet as carefully as homeowners, and you will likely replace it between tenants regardless of fiber type. A 28 to 35 oz polyester at $3 to $4 per square foot installed is the standard rental grade.
Cost Tier By Fiber and Quality
| Fiber and Tier | Material/sqft | Installed/sqft | Lifespan |
|---|---|---|---|
| Budget polyester (PET, 30-35 oz) | $1.00 - $1.75 | $3.00 - $4.50 | 5-7 yrs (high traffic) · 8-10 yrs (light) |
| Premium polyester (40+ oz, soft luxury) | $2.00 - $3.00 | $4.00 - $5.50 | 7-10 yrs depending on traffic |
| Standard nylon (Type 6, 40 oz) | $2.50 - $3.75 | $4.50 - $6.00 | 10-12 yrs |
| Premium nylon (Type 6,6, 50+ oz) | $3.50 - $5.50 | $6.00 - $8.00 | 12-15 yrs |
| Solution-dyed nylon (pet/UV rated) | $4.00 - $6.50 | $6.50 - $9.00 | 15+ yrs |
| Triexta (Mohawk SmartStrand) | $3.50 - $5.50 | $5.00 - $8.00 | 10-15 yrs |
For full project totals by room and square footage, see our 2026 carpet installation cost guide.
Top Carpet Brands By Fiber
| Fiber | Top Brand Lines |
|---|---|
| Nylon (Stainmaster) | Stainmaster PetProtect, Stainmaster Active Family |
| Nylon (Shaw Anso) | Shaw Caress, Shaw Bellera |
| Solution-dyed nylon | Phenix Microban, Mohawk Continuum SD |
| Polyester (PET) | Mohawk Air.O, Shaw LifeGuard PET, Phenix Stainmaster Essentials PET |
| Triexta | Mohawk SmartStrand Forever Clean, Mohawk SmartStrand Silk |
For pet-friendly fiber and pile-by-pile breakdowns, see our flooring guide for homes with pets.
Frequently Asked Questions
Is nylon or polyester carpet better for pets?
Neither is ideal on its own. Nylon is more durable but needs topical stain treatment that wears off. Polyester resists water-based stains but crushes under traffic. For pets, triexta (SmartStrand) is the best choice because it combines permanent stain resistance with good durability. If you must choose between nylon and polyester only, nylon is the better pick because its durability and cleanability outweigh polyester's stain resistance advantage.
Why is nylon carpet more expensive than polyester?
Nylon costs more to manufacture because the raw polymer is more complex to produce and the fiber engineering for resilience requires tighter quality control. Type 6,6 nylon is especially expensive because of the dual polymer process. The price difference is typically $1.50 to $2.50 per square foot at retail, which adds up to $300 to $500 per average room.
How long does polyester carpet last?
Polyester carpet lasts 5 to 10 years depending on traffic. In low-traffic bedrooms, a quality polyester can look good for 8 to 10 years. In living rooms, hallways, and stairs, expect 3 to 5 years before noticeable crushing and matting appear. Once polyester fibers crush, there is no way to restore them.
Can you tell the difference between nylon and polyester carpet by touch?
Yes, usually. Polyester feels noticeably silkier and softer than nylon of the same pile style. Nylon feels slightly coarser but also springier when you press into it. An experienced carpet installer or salesperson can identify the fiber by touch alone. If you are shopping for carpet, feel both fibers side by side and the difference is obvious.
Is solution-dyed nylon better than regular nylon?
Solution-dyed nylon has the color added during fiber production rather than after. This makes it extremely fade resistant and also resistant to bleach and harsh chemicals, which is useful if you need to clean pet stains with strong cleaners. It costs 10 to 20 percent more than standard dyed nylon but is worth it for pet households and sun-exposed rooms.
Should I get polyester carpet for my whole house?
Only if you are on a strict budget and understand the trade-offs. Polyester is fine for bedrooms, guest rooms, and low-traffic spaces. But in living rooms, hallways, and stairs, it will show wear much sooner than nylon. A smarter approach is to use nylon in high-traffic areas and polyester in bedrooms to balance cost and durability across the whole home.