Updated:01 November 2026
Rank 1-16 of the best carpet underlays
Our recommendation Price Customer rating
1. Comparison winner
247Floors PU Foam 10mm Thick Carpet Underlay Roll
247Floors PU Foam 10mm Thick Carpet Underlay Roll
Available immediately
free shipping
  • 10 millimetre thickness provides extra cushioning underfoot and helps extend the life of the carpet
  • manufactured from recycled fibres to lower environmental impact
  • provides thermal and acoustic insulation to keep rooms warmer and quieter
Our rating
9,8
very good
2. Best value
Carpet Underlay 12mm Foam 15m2 Roll
Carpet Underlay 12mm Foam 15m2 Roll
Available immediately
free shipping
  • 12 millimetre thick PU foam underlay supplied in a 15 square metre roll
  • high insulation for warmth and high sound insulation to minimise noise
  • soft underfoot for comfortable walking
Our rating
9,8
very good
10mm Thick PU Carpet Underlay Roll, 11m x 1.37m
10mm Thick PU Carpet Underlay Roll, 11m x 1.37m
Available immediately
free shipping
  • 10 mm thickness provides durable cushioning
  • manufactured with environmentally friendly materials
  • high thermal and sound insulation of 2.71 tog
Our rating
9,8
very good
Luxury 12mm PU Carpet Underlay Rolls
Luxury 12mm PU Carpet Underlay Rolls
Available immediately
free shipping
  • 12mm thickness provides substantial support and cushioning
  • eco-friendly materials ensure minimal environmental impact
  • thermal and sound insulation with a 2.71 tog rating
Our rating
9,8
very good
5. Bestseller
12mm Thick PU Carpet Underlay
12mm Thick PU Carpet Underlay
Available immediately
free shipping
  • 12mm thickness for added durability
Our rating
9,8
very good
12mm PU Foam Carpet Underlay 15m² Roll
12mm PU Foam Carpet Underlay 15m² Roll
Available immediately
free shipping
  • 12mm thick foam provides durability and sturdiness
  • Environmentally friendly material reducing impact on nature
  • Offers excellent heat and sound insulation to improve comfort
Our rating
9,8
very good
Plushwalk 12mm Carpet Underlay
Plushwalk 12mm Carpet Underlay
Available immediately
free shipping
  • 12mm thickness for enhanced softness underfoot
  • provides high acoustic noise reduction of 49dB and thermal insulation of 3.5 TOG
  • simple installation suitable for various floor types including concrete, wood, and asphalt
Our rating
9,6
very good
Carpet Underlay 10mm Thick, 15m² Roll - Cushioned PU Foam, Noise-Reducing, Thermal Insulation
Carpet Underlay 10mm Thick, 15m² Roll - Cushioned PU Foam, Noise-Reducing, Thermal Insulation
Available immediately
free shipping
  • 10 mm thick underlay for plush cushioning underfoot
  • eco-friendly and lightweight material made from recycled PU foam
  • adds extra warmth to rooms while reducing noise by 39 dB
Our rating
9,6
very good
Luxury 8mm PU Carpet Underlay 11m x 1.37m
Luxury 8mm PU Carpet Underlay 11m x 1.37m
Available immediately
free shipping
  • 8mm thickness provides a sturdy and durable underfoot experience
  • environmentally friendly materials with non-toxic composition
  • maintains warmth and reduces noise with a 2.71 tog rating
Our rating
9,5
very good
NOVECRAFTO 11mm Carpet Underlay, 5m²
NOVECRAFTO 11mm Carpet Underlay, 5m²
Available immediately
free shipping
  • 11mm thick carpet underlay for enhanced softness and comfort
  • provides 44dB noise reduction for a quieter environment
  • 3.13 tog rating for effective thermal insulation
Our rating
9,4
good
Carpenter Midas 12mm Carpet Underlay Roll
Carpenter Midas 12mm Carpet Underlay Roll
Available immediately
free shipping
  • 12 mm thickness offers enhanced durability and quality
  • environmentally friendly and non-toxic materials for peace of mind
  • excellent thermal and sound insulation with a 2.71 Tog rating
Our rating
9,1
good
10mm PU Carpet Underlay Rolls - 5 SQM
10mm PU Carpet Underlay Rolls - 5 SQM
Available immediately
free shipping
  • 10mm thickness
  • environmentally friendly materials
  • thermal and sound insulation with a 2.71 tog rating
Our rating
8,9
good
10mm PU Carpet Underlay Roll, 30 Sizes, 10m², UK Manufactured
10mm PU Carpet Underlay Roll, 30 Sizes, 10m², UK Manufactured
Available immediately
free shipping
  • thickness: 10 millimetres provides a stable base for carpets
  • environmental friendliness: environmentally friendly and non toxic
  • thermal insulation: thermal insulation rated at 2.71 tog provides warmth
Our rating
8,9
good
FloorPro 10mm Carpet Underlay 1m x 5m PU Foam for Sound Insulation and Stairs
FloorPro 10mm Carpet Underlay 1m x 5m PU Foam for Sound Insulation and Stairs
Available immediately
free shipping
  • ten millimetres thick PU foam underlay provides cushioning and insulation for carpets
  • reduces noise transfer between floors and helps keep rooms warmer
  • do-it-yourself roll measures 1 m by 5 m, making it simple to cut and install on stairs or in any room
Our rating
8,9
good
FloorPro 8mm PU Foam Carpet Underlay 1m x 5m for Stairs
FloorPro 8mm PU Foam Carpet Underlay 1m x 5m for Stairs
Available immediately
free shipping
  • 8 millimetre thick underlay for extra cushioning and insulation under carpets
  • Dense foam reduces noise transfer between floors for a quieter home
  • 1 metre by 5 metres roll is easy to cut and install on stairs or in rooms, covering 5 square metres
Our rating
8,6
good
fowong Anti-Slip Rug Underlay, 120 x 180 cm
fowong Anti-Slip Rug Underlay, 120 x 180 cm
Available immediately
free shipping
  • customisable 120x170cm rug underlay can be easily trimmed to fit any rug size
  • securely holds rugs in place on hardwood, laminate and carpeted surfaces, reducing movement and preventing rug bunching for safer footing
  • washable and reusable, simply wipe clean to maintain maximum grip and prevent slipping
Our rating
8,6
good

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carpet underlays buying guide: How to choose the right product from the above carpet underlays test or comparison

Introduction to Carpet Underlay: Why it Matters

Understanding Carpet Underlay

Carpet underlay might not be the first thing that comes to mind when discussing flooring, but it plays a crucial role in how your carpet feels and performs. Essentially, underlay is a cushioning layer installed beneath the carpet, and it can significantly affect everything from comfort to durability and sound insulation. When we walk on carpet, it’s the underlay that absorbs the pressure and helps to prolong the lifespan of the flooring material above.

The Impact of Underlay on Your Flooring Experience

Imagine stepping onto a new carpet that feels soft and plush under your feet. This comfort is largely attributed to the quality and thickness of the underlay. Additionally, the underlay can influence how well the carpet retains heat, making your living spaces warmer and more inviting.

Types of Carpet Underlay: Which One is Right for You?

Exploring Different Materials

There are various types of carpet underlay available, including foam, rubber, felt, and crumb rubber. Each type comes with unique benefits. For instance, foam underlay is popular for its lightweight and cushioning properties, while rubber offers excellent sound insulation and longevity.

Choosing Based on Your Needs

Consider the specific needs of your home. If you have children or pets, opting for a durable underlay is advisable. If noise reduction is a priority, rubber underlay can help absorb sounds, making it ideal for multi-storey homes. On the other hand, if you want something more plush and inviting, a thicker foam underlay may be your best bet.

Benefits of Investing in Quality Carpet Underlay

Enhanced Comfort and Support

Investing in a quality underlay can greatly increase the comfort of your carpet, providing a softer feel underfoot. This comfort can make a significant difference, especially in high-traffic areas of your home where you spend more time standing or walking.

Increased Longevity of Your Carpet

A good underlay not only feels great but can also extend the life of your carpet. By absorbing impacts, it reduces wear and tear, meaning you won’t have to replace your carpet as frequently. This can save you money in the long run.

Improved Energy Efficiency

Quality underlay can contribute to better insulation, keeping your home warmer in the winter and cooler in the summer. This means you may save on energy bills, making it a smart investment.

How to Choose the Best Carpet Underlay for Your Home

Assessing Carpet Type and Style

Before selecting underlay, we should consider the type of carpet we have. Thick carpets typically pair well with thicker underlays to create a luxurious feel, while more flat weaves might require thinner options.

Sizing It Up Right

Ensure the underlay you choose matches the same dimensions as your carpet installation. Proper sizing will provide the necessary support without excess material that could lead to uneven surfaces.

Consulting with Professionals

It’s wise to speak with a flooring professional or specialist, as they can offer advice based on your unique situation. Their expertise can guide you in selecting underlay that meets both your aesthetic and functional needs.

Table of contents
  1. Introduction to Carpet Underlay: Why it Matters
  2. Types of Carpet Underlay: Which One is Right for You?
  3. Benefits of Investing in Quality Carpet Underlay
  4. How to Choose the Best Carpet Underlay for Your Home

Overview

1. Comparison winner
247Floors PU Foam 10mm Thick Carpet Underlay Roll
Our rating
9,8
very good
247Floors PU Foam 10mm Thick Carpet Underlay RollAvailable immediately
2. Best value
Carpet Underlay 12mm Foam 15m2 Roll
Our rating
9,8
very good
Carpet Underlay 12mm Foam 15m2 RollAvailable immediately
10mm Thick PU Carpet Underlay Roll, 11m x 1.37m
Our rating
9,8
very good
10mm Thick PU Carpet Underlay Roll, 11m x 1.37mAvailable immediately
Luxury 12mm PU Carpet Underlay Rolls
Our rating
9,8
very good
Luxury 12mm PU Carpet Underlay RollsAvailable immediately
5. Bestseller
12mm Thick PU Carpet Underlay
Our rating
9,8
very good
12mm Thick PU Carpet UnderlayAvailable immediately
12mm PU Foam Carpet Underlay 15m² Roll
Our rating
9,8
very good
12mm PU Foam Carpet Underlay 15m² RollAvailable immediately
Plushwalk 12mm Carpet Underlay
Our rating
9,6
very good
Plushwalk 12mm Carpet UnderlayAvailable immediately
Carpet Underlay 10mm Thick, 15m² Roll - Cushioned PU Foam, Noise-Reducing, Thermal Insulation
Our rating
9,6
very good
Carpet Underlay 10mm Thick, 15m² Roll - Cushioned PU Foam, Noise-Reducing, Thermal InsulationAvailable immediately
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