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DITRA and DITRA-XL are polyethylene uncoupling membranes with a grid structure of square cutback cavities and an anchoring fleece laminated to the underside. DITRA provide uncoupling through the open rib structure, which allows for in-plane movement that effectively neutralizes the differential movement stresses between the substrate and the tile, thus eliminating the major cause of cracking and delaminating of the tiled surface. In conjunction with tile coverings, DITRA and DITRA-XL form an uncoupling, waterproofing, and vapor management layer, while providing support/load distribution. The combination of these four essential functions allows for the successful installation of tile over a wide range of substrates, including plywood/OSB, concrete, gypsum, heated floors, etc.


$127.08 Regular Price
$88.96Sale Price
    • Provides uncoupling, waterproofing, vapor management, and heavy load distribution to ensure the durability and integrity of tile installations
    • Quick and easy to install on top of concrete, plywood, OSB, gypsum, existing vinyl floors, structural planks, sub-floors, and radiant heated floors
    • Convenient tile underlayment alternative to cement backer board or plywood
    • Use DITRA for ceramic tile installations over single layer plywood or OSB subfloors on joists spaced up to 19.2" o.c.
    • DITRA is only 1/8" (3.5 mm)-thick to provide the thinnest possible assembly without sacrificing performance
    • DITRA features cutting grooves for precise cuts and air release vents at the corners of the cutback cavities for faster filling
    • Use DITRA-XL for ceramic tile installations over single layer plywood or OSB subfloors on joists spaced up to 24" o.c.
    • DITRA-XL is 5/16” (7 mm)-thick to create an even transition between typical 5/16” (7 mm)-thick tile and 3/4” (19 mm)-thick hardwood flooring
    • DITRA-XL is ideal for installations requiring greater movement accommodation, such as applications using natural stone tile, large-format tile, etc.
    • DITRA and DITRA-XL are for interior use only, dry or wet areas
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