What Is Best Underlay For Carpet In 2023

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Carpet underlay is a vital element in any carpet installation, providing enhanced comfort, insulation, and longevity for your flooring. However, navigating the vast array of underlay options on the market can be a daunting task, especially when trying to find the perfect match for your home or office.

In the United Kingdom, there are numerous types of carpet underlay products, each with its own set of advantages and disadvantages.

Fear not! In this article, we’ve got you covered as we delve into the best carpet underlay flooring options available in the UK, making your decision process a breeze. Let’s dive in!

Check out our Top 5 Best Underlay For Carpet at the bottom of the article!

Why Carpet Underlay Matters

Why Carpet Underlay Matters 1

Before we delve into the specific types of underlays and their benefits, let’s take a moment to understand why choosing carpet Funderlay is so crucial for a successful carpet installation.

Comfort: A good underlay provides cushioning, making your carpet more comfortable and softer underfoot.

Insulation: Underlay can significantly improve the thermal insulation of your flooring, which can help you save on energy bills.

Sound reduction: Underlay can absorb sound and reduce noise transmission between floors, making your home more peaceful.

Carpet lifespan: Quality new underlay can extend the life of your carpet by reducing wear and tear and providing better support.

With these benefits for good carpet underlay in mind, let’s explore the key factors you need to consider when choosing the best underlay for your carpet.

Exploring Different Types of Underlay

Exploring Different Types of Underlay 1

As you embark on your quest to find the perfect underlay for your new carpet, it’s essential to understand the different types available in the market. Each type of underlay has unique characteristics and is suitable for specific carpet types and room requirements. Let’s take a closer look at the most common types of underlay:

Rubber Underlay

Rubber underlays are highly durable and offer excellent support, making them ideal for high-traffic areas and heavy furniture. There are two primary types of rubber underlay:

Waffle Rubber: Features a waffle-like texture that provides a good balance of cushioning and support. Waffle sponge rubber underlays are suitable for most residential applications and can be used with various carpet types.

Flat Rubber: Offers a firmer, denser feel than waffle rubber or sponge rubber underlay, making it perfect for heavy furniture and areas with high foot traffic. Flat rubber underlays are often used with loop pile carpets and woven carpets to protect the carpet fibers and maintain their structure.

PU Foam Underlay

Polyurethane (PU) foam underlays are lightweight and environmentally friendly, as they’re often made from recycled foam. They provide good insulation and cushioning, making them suitable for most residential applications. PU foam underlays come in various thicknesses and densities, allowing you to tailor the underlay to your specific needs.

Felt Underlay

Felt underlays are a traditional option made from a blend of wool and synthetic fibers. They offer excellent durability and density, making them suitable for heavy furniture and high-traffic areas. Felt underlays also provide good insulation and noise reduction. They’re often used with woven carpets, such as Axminster and Wilton, to protect the carpet’s delicate structure.

Crumb Rubber Underlay

Crumb rubber underlays are made from recycled rubber granules, making them an environmentally friendly option. They offer excellent support, durability, and noise reduction, making them ideal for high-traffic areas and rooms where sound absorption is a priority. Crumb rubber underlays work well with various carpet types, including loop pile carpets, and provide a firm, stable foundation.

Combination Underlay

Combination underlays blend the best of both worlds by fusing two materials, such as rubber and felt, or foam and felt. These hybrid underlays offer a balance of comfort, support, and durability, making them suitable for a wide range of carpet types and room requirements. Combination underlays can provide excellent insulation and noise reduction, as well as a luxurious feel underfoot.

By understanding the different types of underlay available, you can better evaluate your options and choose the one that best meets your carpet type, room requirements, and personal preferences. Remember to consider factors such as material, thickness, density, insulation, and noise reduction when making your decision to ensure the best performance and longevity for your carpet and finally understanding what is best underlay for carpet.

While rubber, PU foam, felt, crumb rubber, and combination underlays are the most common underlay types, there are a few additional underlay options available in the market. These alternative types cater to specific needs and preferences:

Memory Foam Underlay

Memory foam underlays are made from viscoelastic foam, which is known for its ability to contour and mold to your body shape. This unique feature provides exceptional cushioning and comfort underfoot. Memory foam underlays are excellent for bedrooms and living areas where a plush feel is desired. Additionally, they offer good noise reduction and insulation properties.

Cork Underlay

Cork underlays are made from the bark of cork oak trees, making them a sustainable and eco-friendly option. Cork is naturally hypoallergenic, mold- and mildew-resistant, and offers excellent thermal and acoustic insulation. This type of underlay is ideal for allergy sufferers or those who prioritize sustainable materials. Cork underlays work well with various carpet types and can be used in both residential and commercial settings.

Acoustic Underlay

Acoustic underlays are specifically designed to provide superior sound reduction and are often used in multi-story homes, apartments, or commercial spaces where noise transfer is a significant concern.

Key Factors to Consider With Choosing The Best Underlay Carpet

Key Factors to Consider With Choosing The Best Underlay Carpet 1


There are several materials used in the production of underlays, each with its unique properties and advantages:

Rubber: Offers excellent durability, support, and acoustic properties. Ideal for high-traffic areas, such as hallways and stairs.

PU Foam: Lightweight, environmentally friendly, and provides good insulation. Suitable for most residential applications.

Felt: A more traditional option, felt underlays are dense and durable, making them ideal for heavy furniture and high-traffic areas.

Crumb Rubber: Made from recycled rubber, this underlay offers excellent support, durability, and noise reduction.


Underlay thickness plays a crucial role in determining the comfort and insulation properties. Generally, a thicker underlay offers better cushioning and insulation. However, the thickness should be balanced with the type of carpet and the room’s intended use. For example, a thicker underlay may not be suitable for heavy furniture or high-traffic areas, as it can cause the carpet to wear out faster.


The density of an underlay determines its ability to provide support and resist compression. A higher-density underlay offers better support, noise reduction, and insulation. It’s essential to choose an underlay with a suitable density for your carpet type and room requirements.

Tog Rating

Tog rating measures the thermal resistance of an underlay. A higher tog rating means better heat insulation, which can be beneficial in colder climates or for energy-saving purposes. However, if you have underfloor heating, it’s important to choose an underlay with a lower tog rating to allow efficient heat transfer.

The Importance of Matching Underlay to Carpet Type

The Importance of Matching Underlay to Carpet Type 1

To ensure the longevity and performance of your carpet, it’s vital to match the underlay to the specific carpet type. Different types of carpets have unique requirements that need to be addressed by the appropriate underlay:

Loop Pile Carpets

Loop pile carpets, also known as Berber carpets, are made with loops of yarn that create a level, durable surface. These carpets require a firm, high-density underlay to prevent the loops from being crushed and to minimize the risk of damage from heavy furniture.

Cut Pile Carpets

Cut pile carpets are created by cutting the yarn loops to create a plush, soft underfoot surface. This type of carpet benefits from a thicker, cushioned underlay that provides a luxurious feel underfoot.

Woven Carpets

Woven carpets, such as Axminster and Wilton, are made using a traditional weaving process. These carpets require a high-quality, dense underlay to ensure durability and to protect the intricate weave.

Understanding Underlay Specifications

When comparing different underlays, you’ll come across various technical specifications that can help you determine the best fit for your specific needs. Here’s a brief overview of the most common specifications and what they mean:


Underlay weight is measured in ounces per square yard (oz/yd²) or grams per square meter (g/m²). A heavier underlay typically offers better support, cushioning, and durability. However, the optimal weight depends on the carpet type and the room’s requirements.

Impact Sound Reduction (ISR)

ISR is a measure of an underlay’s ability to reduce impact noise, such as footsteps or moving furniture. A higher ISR value indicates better sound absorption, which can be particularly beneficial in multi-story homes or apartments.

Compression Resistance

Compression resistance refers to underlays ability to retain its original thickness and support over time, even when choosing underlay with heavy foot traffic or furniture weight. Underlays with high compression resistance are more durable and can help extend the life of your carpet. Some carpet underlay may feel great at first but once it becomes old underlay will it have the same qualities.

Budget Considerations

Budget Considerations 1

Underlay prices can vary widely depending on the material, thickness, and other features. While it might be tempting to opt for the cheapest option, investing in a good quality underlay can save you money in the long run by extending the life of your carpet and reducing energy costs through improved insulation.

When considering your budget, keep in mind the following points:

Long-term benefits: A higher-priced underlay may provide better support, insulation, and noise reduction, which can result in long-term savings on energy bills and carpet replacement costs.

Warranty: Check the warranty offered by the underlay manufacturer. A longer warranty can give you peace of mind and protection for your investment.

Room-specific needs: Evaluate the specific requirements of each room in your home. You may need to invest in a more expensive underlay for high-traffic areas or rooms with heavy furniture, while more affordable options might be suitable for low-traffic spaces.

Environmental Considerations

As homeowners become more environmentally conscious, many underlay manufacturers are now producing eco-friendly options. Some of the key factors to consider when selecting an environmentally friendly underlay choice include:

Recycled materials: Look for underlays made from recycled materials, such as crumb rubber or recycled foam, to reduce waste and promote sustainability.

Low VOC emissions: Volatile organic compounds (VOCs) can be harmful to indoor air quality. Choose underlays with low VOC emissions to ensure a healthier living environment.

Sustainable manufacturing processes: Opt for underlays produced using environmentally friendly processes and energy-efficient facilities.

Health and Allergy Considerations

For those with allergies or respiratory concerns, selecting an underlay with specific features can significantly improve indoor air quality and minimize allergens:

  • Hypoallergenic materials: Choose underlays made from hypoallergenic materials, such as synthetic foam, which are less likely to harbour dust mites and other allergens.
  • Antimicrobial treatments: Some underlays come with antimicrobial treatments that inhibit the growth of mould, mildew, and bacteria, helping to maintain a healthier living environment.
  • Dust and allergen barriers: Underlays with built-in dust and allergen barriers can prevent these particles from penetrating the underlay and becoming trapped, making your home easier to clean and maintain.

Installation and Maintenance

Proper installation and maintenance of your underlay are crucial to its performance and longevity. Some key points to consider include:

Professional installation: While it’s possible to install underlay yourself, hiring a professional can ensure a smoother, more efficient installation process and prevent potential issues down the line.

Moisture barrier: In rooms prone to dampness, such as basements, consider using an underlay with a built-in moisture barrier to protect both the underlay and the carpet from moisture damage.

Regular maintenance: Regular vacuuming and cleaning of your carpet can help maintain the underlay’s effectiveness and extend the life of your flooring.

Top 5 Best Underlay For Carpet

Top 5 Best Underlay For Carpet

1. Cloud 9 Cumulus 11mm Thick Carpet Underlay

Cloud 9 Cumulus 11mm PU Carpet Underlay Rolls 1
Cloud 9 Carpet Underlay
  • Luxurious feel
  • Environmentally friendly
  • Excellent insulation tog rating
  • Effective sound reduction
  • Free samples
  • Not specifically designed for underfloor heating

The Cloud 9 Cumulus 11mm PU Carpet Underlay Rolls offer a high-quality, luxurious feel for your home while being environmentally conscious. Manufactured in the UK, these underlays are available in 30 different sizes, ensuring a perfect fit for any room in your home, with a total coverage area of 40m².

Customizable Dimensions and Easy Installation

Each underlay roll is 1.37 meters wide and cut to the appropriate length to fill your chosen area. With an 11mm thickness, this Grade A underlay material provides a plush and comfortable feel underfoot. The environmentally friendly and non-toxic materials used in the production make it a responsible choice for your home. Moreover, the Cloud 9 Cumulus underlay is easy to fit, ensuring a hassle-free installation process.

Impressive Insulation and Sound Reduction

The 11mm thickness of this underlay offers excellent thermal insulation, with a tog rating of 3.1. This helps to keep your home cozy and energy-efficient. In addition, the Cloud 9 Cumulus underlay provides an impressive impact sound insulation of 43 dB, reducing noise from footsteps and other impacts for a quieter living environment.

Ideal for Luxury Use

Recommended for luxury use, this underlay is perfect for those who appreciate a touch of extravagance in their homes. If your chosen area is larger than 15m², the underlay will be delivered in multiple packages to accommodate the size.

Free Samples Available

To ensure you are confident in your purchase, Cloud 9 Cumulus offers free samples of their 11mm PU Carpet Underlay Rolls. This allows you to get a feel for the product and its quality before making a decision.

2. 12mm Thick PU Carpet Underlay

12mm Thick PU Carpet Underlay - 15 Square Meter Rolls - UK Manufactured Quality Feel - Hard Wearing
12mm Thick PU
  • Excellent customer reviews
  • Thick and Comfortable
  • Fantastic price
  • High quality
  • Durable and hard-wearing
  • Size limitations

Premium Comfort and Durability for Your Home

Experience exceptional comfort and durability with the 12mm Thick PU Carpet Underlay. This UK-manufactured underlay is designed to provide a high-quality feel and long-lasting support for your carpet. With its 15 square meter rolls, this underlay is perfect for homeowners seeking a hard-wearing solution for their flooring needs.

Superior Thickness for Enhanced Comfort

Boasting a generous 12mm thickness, this PU carpet underlay ensures premium comfort underfoot, elevating your home’s overall ambiance. The thick cushioning not only enhances the feel of your carpet but also contributes to the longevity of your flooring by providing extra support.

Hard-Wearing and Long-Lasting

The 12mm Thick PU Carpet Underlay is designed to be hard-wearing, making it suitable for high-traffic areas in your home. Its durability ensures that your carpet remains in top condition for an extended period, protecting your investment and maintaining the appearance of your floors.

3. Plushwalk 10mm Carpet Underlay

Plushwalk Carpet Underlay
Plushwalk Carpet Underlay
  • Memory foam technology
  • Impressive acoustic insulation
  • Excellent thermal insulation
  • Highly praised by customers
  • Higher cost

Memory Foam for Ultimate Softness

The Plushwalk Carpet Underlay features memory foam, providing an incredibly soft and cushioned feel beneath your carpet. This innovative technology ensures a luxurious experience, elevating the overall ambiance of your home.

Impressive Acoustic and Thermal Insulation

This 10mm thick underlay boasts a high acoustic rating of 44dB, effectively reducing noise transmission and contributing to a quieter living environment. Additionally, the Plushwalk underlay offers excellent thermal insulation with a 2.7 TOG rating, ensuring your home stays cozy and energy-efficient.

Top Choice for Quality and Performance

The Plushwalk Carpet Underlay has been praised as the best underlay on the market by numerous satisfied customers. Its combination of memory foam technology, acoustic and thermal insulation, and exceptional softness underfoot make it an excellent choice for those seeking superior quality and performance in their carpet underlay.

4 Luxury 10mm Thick PU Carpet Underlay

Luxury 10mm Thick PU Carpet Underlay Rolls
Thick PU Carpet Underlay
  • High-quality and luxurious feel
  • Environmentally friendly
  • Excellent thermal insulation
  • Free samples available
  • Product maybe different to the pictures

Exceptional Comfort and Durability

The 1.37m wide underlay features a 10mm thickness, providing a Grade A level of comfort underfoot. Its environmentally friendly and non-toxic materials make it a responsible choice for your home. With a density of 90kg per m³, this underlay is designed to be durable and long-lasting.

Effortless Installation and Impressive Insulation

The Luxury 10mm Thick PU Carpet Underlay is easy to fit, ensuring a hassle-free installation process. It offers a 2.71 tog rating, providing excellent thermal insulation to keep your home warm and energy-efficient.

Free Samples for Your Convenience

To help you make a confident decision, the Luxury 10mm Thick PU Carpet Underlay offers free samples upon request.

5. 10mm Thick Pu Foam Carpet Underlay 15m2 Per Roll

10mm Thick Pu Foam Carpet Underlay 15m2 Per Roll L
Thick Pu Foam Underlay
  • Affordable luxury
  • Suitable for all areas
  • Excellent heat and sound insulation
  • Carpet protection
  • Potentially less durable

Affordable Luxury and Protection for Your Carpet

Introducing the 10mm Thick PU Foam Carpet Underlay, a premium quality, entry-level product that offers a luxurious feel underfoot. Suitable for all areas of your home, this underlay provides excellent heat and sound insulation properties while protecting your carpet from premature wear.

Superior Comfort and Insulation

The 10mm thickness of this underlay ensures a comfortable and luxurious feel underfoot, making it perfect for use throughout your home. With a high tog rating of 2.47 and a DB rating of 38dB, this underlay offers excellent heat and sound insulation properties, creating a cozy and quiet living environment.

Carpet Protection and Durability

The 10mm Thick PU Foam Carpet Underlay is designed to protect your carpet from premature wear, prolonging its life and maintaining its appearance. This durable underlay is suitable for use in all areas of your home, providing reliable support for your flooring investment.


In conclusion, choosing the right underlay for your carpet is crucial to ensure long-lasting comfort, durability, and optimal performance. We have explored various types of carpet underlays and their unique features, including rubber, foam, and felt, as well as discussed the importance of factors like thickness, insulation, and compatibility with underfloor heating.

Our top 5 underlay product reviews showcase a range of options to suit different needs and budgets, each offering their own set of pros and cons. if you buy carpet underlay, let us know your thoughts in the comments.


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