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What the Best Build On

The most chosen brand by trade pros* who build to last, Hardie® Backer Board is a time-tested performance tile backer engineered to hold tiles secure to help prevent shifting. cracking, and costly call-backs.

Why choose Hardie® Backer Board?

Every quality tile job should start with the best tile underlayment: the industry-defining fiber cement innovation, Hardie® Backer Board. Chosen in over 40 million kitchens and bathrooms across North America,** it's the #1 best-selling tile backer board amongst trade pros* for a reason. Hardie® Backer Board is the time-tested performance backer that resists cracking under pressure and keeps tiles in place.

Superior strength

Hardie® Backer Board is made of fiber cement, a material stronger than foam. Resists splitting, cracking, or shifting so your tile job holds up under weight and over time.

Excellent grip

A tight hold on tile requires excellent grip. Hardie® Backer Board is engineered to perform as a rock-solid base that helps prevent tile from popping, loosening, or shifting over time.

Moisture resistant

Hardie® Backer Board's water-resistant engineering and its MoldBlock® Technology actively protects the board from mold growth before it can take hold.

Easy to work with

Most chosen brand by pros*

With industry-leading strength, composition, and performance, our cement backer board is the preferred brand* of cement backer board by trade pros. Hardie® Backer Board is engineered to resist moisture penetration and water damage while providing a solid foundation that prevents tile from shifting or cracking over time. Use .25-inch Hardie® Backer Board on the countertops and floors of your kitchen, bathroom, or other damp floor surfaces. .42-inch Hardie® Backer Board is best suited for tiled backsplashes. Explore Hardie® Backer Board
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Get in touch with Hardie® Backer Board experts

Tell us more about your project and our experts will help bring it to life!

Where to Use Hardie® Backer​ Board

​Discover which Hardie® Backer Board is right for your project.

  • Bathroom. Click to open modal.Bathroom
  • Kitchen. Click to open modal.Kitchen
  • Laundry. Click to open modal.Laundry
  • Floors. Click to open modal.Floors

Explore Hardie® Backer Board

Find a local retailer for more information about Hardie® Backer Board products​.

*Based on 2024 Principia survey of backer board sales. **Estimate based on Hardie® Backer sales volume and average tile area in kitchens and bathroom remodel (Principia, 2025). ***Meets ANSI 118.10 Waterproofness Standard.