How Thick Should My Flooring Underlay Be?

Choosing the right thickness for your underlay is essential to ensure your flooring looks great and performs well. Here’s a simple guide to help you decide:

For Flooring Under 18mm Thick
A 3mm underlay is ideal for flooring less than 18mm thick. This thinner option provides sufficient support without adding unnecessary height.

For Flooring 18mm or Thicker
For flooring that is 18mm or thicker, you’ll need a 5mm underlay. This added thickness ensures better stability and cushioning for heavier or more robust flooring options.

If You Have Underfloor Heating (Water-Based)
If you’re using water-based underfloor heating, opt for a 4mm underlay. It strikes the right balance, allowing heat to transfer efficiently while providing adequate support.

Why Choosing the Right Underlay Matters
Underlay plays a vital role in the performance and lifespan of your flooring. The correct thickness can improve insulation, reduce noise, and provide better comfort underfoot. Using the wrong underlay could lead to uneven surfaces, reduced energy efficiency, or even damage to your flooring.

At Flooring365.co.uk, we’re here to help you choose the perfect underlay for your flooring and heating needs. Don’t forget, you can order free samples to see the quality for yourself. If you have any questions, feel free to contact us or explore our range online.