Carpet underlay might sit hidden beneath your carpet, but it plays a huge role in how your floor feels and performs. The right underlay makes your carpet softer, warmer, quieter and longer-lasting.
In this guide, we’ll explain how carpet underlay works, what thickness you should choose and the best options available for your home.
Why carpet underlay matters
- More comfort: softer feel underfoot
- Warmer rooms: better insulation
- Less noise: reduces sound between floors
- Longer carpet life: protects fibres from wear
What thickness carpet underlay should you choose?
8–9mm underlay (budget option)
A good entry-level choice that provides decent comfort and support without increasing cost too much.
10–11mm underlay (best all-round choice)
The most popular option. Offers the best balance of comfort, durability and value.
12mm underlay (premium comfort)
If you want a softer, more luxurious feel underfoot, thicker underlay is the best choice — especially in bedrooms.
Best carpet underlay options
Which carpet underlay should you choose?
- Best value: Super 8mm
- Best all-round: 10–11mm underlay
- Best comfort: Super 12mm
- Best premium option: Tredaire Dreamwalk
Common mistakes to avoid
- Choosing underlay that is too thin
- Trying to save money on underlay
- Using the wrong underlay for the room
Shop carpet underlay
Explore our full range of carpet underlay to find the perfect balance of comfort, durability and value.
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Final thoughts
The best carpet underlay depends on your budget and the level of comfort you want. Investing in the right underlay will make a noticeable difference to how your carpet feels and how long it lasts.
