KERDI-BOARD 1/2-in Foam Tile Backer Board

A lightweight, waterproof, extruded polystyrene foam building panel with fleece surfaces for strong thin-set bonding. Ideal as a tile substrate for showers, tub surrounds, countertops, and custom builds, providing thermal insulation and dimensional stability.

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Key Features:

• Waterproof Construction: Extruded polystyrene foam core with reinforced fleece surfaces for dependable moisture protection
• Strong Tile Bond: Fleece webbing anchors securely in thin-set mortar for reliable tile installation
• Lightweight & Easy to Cut: Gridlines and utility-knife-friendly design simplify handling and customization on site
• Versatile Use: Suitable for walls, vanities, benches, shelves, and countertops in interior applications
• Rigid & Impact-Resistant: Provides a flat, plumb, and stable substrate that replaces gypsum or cement backer boards

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Panel material	Extruded polystyrene foam with reinforcement and fleece webbing on both sides
Thickness	0.5 in (1/2 in; 12.5 mm)
Panel size	48 in x 96 in (4 ft x 8 ft)
Application	Interior; tile substrate and bonded waterproofing assemblies
Key properties	Waterproof, thermally insulating, rigid, impact-resistant, dimensionally stable, lightweight
Installation	Cut with utility knife; thin-set mortar bonds tile to fleece surface
Replaces	Gypsum board or cement backer board in suitable applications

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Frequently Asked Questions (FAQ):

Q: Can KERDI-BOARD be used outdoors?
A: No. It is intended for interior applications only.

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Q: How do I cut the panels?
A: Score with a utility knife along the printed gridlines and snap; no special tools required.

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Q: What thickness is this panel?
A: This listing is for the 1/2 inch (0.5-in) thickness panel.

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Q: Do I need to waterproof the seams?
A: Yes. Treat abutting seams and joints per Schluter instructions to create bonded waterproofing assemblies.

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Q: Can tile be installed directly on the board?
A: Yes. Install tile using thin-set mortar over the fleece-faced surface.

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Sculptural, Seamless, and Ready for Tile

This panel is the quiet hero behind elevated bathrooms and kitchens—sleek, strong, and impeccably true. The signature orange grid offers precise cuts and a clean, architectural rhythm. Wrap a tub deck or craft a floating vanity, then finish with luxe stone or ceramic for a tailored look. It’s an essential foundation for spaces that feel custom, curated, and effortlessly refined.

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Build watertight, tile-ready surfaces with KERDI-BOARD—add this 1/2-in panel to your project today.