Nylon Carpet Flooring: Pros, Cons, and Buying Guide

If you own a house for more than 10 years with carpet, nylon is almost certainly the fiber that lasts the distance. Nylon carpet flooring holds roughly 60 percent of the residential market share in the United States because it outperforms polyester, polypropylene, and even wool on durability, resilience, and stain recovery when properly treated. The tradeoff is price and a specific weakness around certain stains. Knowing when to spec nylon versus the cheaper polyester alternatives saves homeowners thousands of dollars over a carpet’s lifespan, and the answer depends heavily on traffic, pets, and how long you plan to keep the carpet down.

What Makes Nylon Different

Nylon is a synthetic polyamide fiber first commercialized in 1938. It has three qualities that no other carpet fiber matches at the same price point: exceptional abrasion resistance, natural resilience (springs back after compression), and strong pigment adhesion when solution-dyed. A nylon fiber crushed under a 1,000-pound sofa for five years will still spring back noticeably when the furniture is moved. Polyester will not.

The two main types of nylon used in residential carpet are Nylon 6 and Nylon 6,6. Nylon 6,6 (made by brands like Mohawk SmartStrand and Shaw Anso) has tighter molecular structure, slightly better stain resistance, and commands a 10 to 20 percent price premium. Nylon 6 is the more common consumer-grade fiber. Both massively outlast polyester on matting and crushing.

Nylon vs Polyester

Polyester carpet (often labeled PET) is half the price of nylon at equivalent face weight. It feels soft, takes vivid colors, and has excellent water-based stain resistance. Walk into any bedroom outlet and most “luxury soft” carpet is PET polyester.

The problem is resilience. Polyester mats and crushes permanently under foot traffic within 3 to 5 years in a high-traffic hallway or living room. Nylon in the same conditions still looks acceptable at 10 years. Oil-based stains (body oil from bare feet, cooking grease, pet paws) also bond permanently with polyester while nylon releases them with proper treatment.

• Budget or low-traffic rooms: Polyester PET. Fine for bedrooms and guest rooms.
• High-traffic zones: Nylon, always. Stairs, hallways, family rooms.
• Pet households: Solution-dyed nylon. Resists pet stains and bleach cleanup.
• Long-term ownership: Nylon. The higher upfront cost pays back in double the lifespan.

Nylon vs Wool

Wool is the only natural fiber that competes with nylon on durability and resilience. Wool handles compression beautifully, naturally resists stains from water-based substances, and has a richer hand than synthetic fibers. The tradeoffs are price ($12 to $25 per sq ft for quality wool versus $4 to $9 for nylon) and vulnerability to moths, high-pH cleaners, and poor colorfastness to bleach.

For high-end traditional homes where budget is not a concern, wool is still the premium choice. For everyone else, nylon delivers 85 percent of wool’s performance at 40 percent of the price, with far better defense against pet and red-wine incidents.

Top Nylon Carpet Brands

Mohawk SmartStrand Silk

Technically a PTT triexta fiber, marketed as a nylon competitor. Excellent stain resistance, premium softness. $5 to $9 per sq ft installed.

Shaw Anso Caress

Pure nylon with built-in stain and soil protection. Shaw’s lifetime stain warranty is the most comprehensive in residential carpet. $5.50 to $8 per sq ft.

Stainmaster PetProtect

Invista-brand Nylon 6,6 with solution-dyed fibers. The standard for pet homes. $5 to $8 per sq ft installed.

Karastan Kashmere

High-end nylon with silk-like softness. $7 to $11 per sq ft installed. The closest synthetic to true wool hand.

Phenix Microban Nylon

Nylon with built-in antimicrobial treatment. Good for allergy-sensitive households. $4.50 to $7 per sq ft.

Solution-Dyed vs Piece-Dyed Nylon

Solution-dyed nylon has pigment extruded into the fiber during manufacture, so the color goes all the way through. You can clean solution-dyed carpet with diluted bleach and the color stays intact. Piece-dyed nylon has color applied to the surface of the finished fiber, which means bleach and certain stains strip the color.

For pet households, households with young children, and homes with active cleaning needs, solution-dyed is the better choice. Budget an extra $0.50 to $1 per sq ft versus equivalent piece-dyed nylon. The resilience to cleaning chemicals pays back quickly.

Honest Advantages

Lifespan. A quality nylon carpet with proper care lasts 12 to 20 years in residential use. Polyester at the same price point lasts 5 to 10 years. Over a 15-year homeownership period, nylon is actually cheaper because you replace it once instead of twice.

Resilience. Nylon’s molecular memory returns it to shape after compression, which keeps traffic patterns from becoming permanent bald lanes down hallways. Colorfastness is another win: modern nylon holds color under direct sunlight for 10 to 15 years with minimal fading.

Real Drawbacks

Nylon is not inherently stain resistant. Untreated nylon fiber absorbs dyes and acid-based stains (wine, coffee, mustard, pet urine) quickly and permanently. All modern residential nylon carpet is treated with a stain-block chemistry like Scotchgard or Stainmaster, and those treatments wear off over 8 to 12 years with heavy cleaning, which exposes the fiber to permanent staining.

Static electricity can build up in low-humidity environments. Most modern nylon is treated to dissipate static, but budget products may still generate noticeable shocks in winter. Price is the final drawback. Nylon carpet material costs 60 to 100 percent more than equivalent polyester, which pushes total project costs up significantly on large installs.

Face Weight, Density, and Pile Type

Face weight measures ounces of fiber per square yard. Residential nylon ranges from 30 oz (builder-grade) to 70+ oz (luxury). For living rooms and bedrooms, look for 45 to 55 oz. For stairs and hallways, 55 to 70 oz keeps the carpet looking good longer.

Density (measured in ounces per cubic foot) matters more than face weight alone. Dense, tightly packed fiber wears better than loose lofty fiber of the same weight. Frieze (twisted yarn) and Berber (loop pile) constructions hide dirt and traffic patterns better than plush cut pile.

Cost and Installation

Expect $4 to $9 per sq ft installed for mid-range residential nylon carpet flooring, including pad and installation labor. Premium nylon and solution-dyed products push $8 to $12 per sq ft. A 1,500 sq ft whole-house recarpet with quality nylon runs $6,000 to $13,500 total.

Use an 8-lb density rebond pad minimum, 10-lb for heavy traffic rooms. Professional tack-strip stretch installation is strongly recommended over knee-kick DIY, which almost always leaves ripples within a year. A good installer can carpet a whole house in 2 to 3 days.