HardieBacker 1/4-in Fiber Cement Backer Board, 3x5 ft

HardieBacker 1/4-in fiber cement backer board delivers a durable, moisture-resistant underlayment for tile floors and countertops. Engineered with MoldBlock technology and an EZ Grid surface for clean score-and-snap cuts, it provides strong adhesion and a solid foundation in wet-area installations.

Key Features:

• Moisture & Mold Protection: Fiber cement board with MoldBlock Technology resists moisture and mold growth in wet areas
• Easy Cutting: Score-and-snap design and EZ Grid surface minimize dust and speed installation
• Versatile Underlayment: Ideal beneath tile, vinyl, wood, granite and stone on floors and countertops
• Durable Composition: 90% Portland cement and sand for long-lasting strength and tile adhesion
• Warranty Coverage: Backed by a limited lifetime product warranty

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Is this board waterproof or just water-resistant?
A: It is listed as waterproof and water-resistant; always follow local codes and use appropriate waterproofing for seams and penetrations.

Q: Where can I use this 1/4-in board?
A: Use as an underlayment for floors and countertops; for walls and showers, follow manufacturer guidance and local codes.

Q: How do I cut the board?
A: Score the face with a carbide scoring knife and snap along the line for clean, low-dust cuts.

Q: What are the actual dimensions and coverage?
A: 0.25 in thick x 36 in wide x 60 in long; one sheet covers approximately 15 sq ft.

Q: What fasteners and mortar should I use?
A: Use appropriate backer board screws or galvanized roofing nails and a polymer-modified thinset mortar per manufacturer instructions.

A Clean, Confident Foundation for Tile Perfection

This backer board creates an impeccably smooth, steadfast canvas that lets your tilework sing. I love the subtle grid—an elegant guide that keeps lines razor-true while cutting. Float it beneath large-format marble or warm wood-look planks to elevate everyday rooms with a spa-worthy finish. It’s the quiet luxury essential that makes craftsmanship feel effortless.

Build a moisture-tough, tile-ready surface today with HardieBacker 1/4-in—add to cart and start your project with confidence.