Verdict
Choose wool for a premium feel and natural resilience where budget allows; choose polypropylene (or a wool-rich blend) for stain resistance and value in busy, spill-prone family rooms. Blends aim to balance the two.
Carpet fibre matters as much as colour. The two you'll meet most are wool (natural, often in blends) and polypropylene (a synthetic, also called olefin). Many carpets are blends — for example 80% wool, 20% synthetic — to combine strengths.
The right fibre depends on the room, the household and the budget. This is a feel-and-practicality decision rather than a simple ranking.
Side by side
| Factor | WoolNatural, premium feel | PolypropyleneSynthetic, stain-resistant, value |
|---|---|---|
| Best for | Comfort & quality | Busy, spill-prone rooms |
| Feel | Soft, resilient and naturally springy | Softer ranges available; varies by construction |
| Stain resistance | Naturally resists some soiling; can mark from strong stains | Resists many stains; can be bleach-cleanable (check product) |
| Durability | Recovers well from crushing; naturally flame-resistant | Hard-wearing; can flatten in very high traffic |
| Cost | Typically higher, especially 100% wool | Typically lower — good value |
| Eco angle | Natural, renewable fibre | Synthetic; recyclable options vary |
| Explore | Wool | Polypropylene |
Best for
Wool
- Bedrooms and lounges where feel and quality matter most
- Homes wanting a natural fibre with good crush recovery
- Where budget allows a premium carpet
Polypropylene
- Family rooms, stairs and lettings where spills are likely
- Households wanting easy stain cleaning and value
- Rooms where budget is a key driver
Potential drawbacks
Wool
- Higher cost, especially 100% wool
- Can be marked by strong or acidic stains
- Best cleaned carefully to protect the fibre
Polypropylene
- Can flatten in very high-traffic areas
- Feel varies a lot between budget and better ranges
- Less naturally resilient than wool
Preparation implications
- Fibre doesn't change the subfloor work: both need sound gripper and suitable underlay over a reasonably level floor.
- Underlay choice affects comfort and how the carpet wears, whatever the fibre.
Maintenance implications
- Wool: vacuum regularly and treat spills promptly and gently; follow care guidance to protect the fibre.
- Polypropylene: vacuum regularly; many ranges tolerate robust stain cleaning — check the specific product's guidance.
Fitting implications
- Both are fitted to gripper over underlay in the same way; the fibre doesn't change the fitting method.
- Heavier wool carpets can be firmer to handle, but that's a fitting detail, not a decision point.
Questions to ask before choosing
- How busy is the room, and how likely are spills?
- Do you want a natural fibre, or is value the priority?
- Would a wool-rich blend give the balance you want?
- How will the carpet be cleaned, and does that suit the fibre?