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Durock™ Brand Surface™ Self-Leveling Underlayments

Premium engineered cementitious underlayment

Key Documents & Design Files


USG Durock™ Brand Surface™ Self-Leveling Underlayments are designed for interior use in commercial, institutional and rehab construction.

Main Features

Durock™ Brand Surface™ Self-Leveling Underlayments provide a smooth, hard underlayment surface over concrete slabs, pre-stressed concrete and concrete planks at thicknesses up to 3 in. (76 mm). Suitable for a variety of floor coverings, Durock™ Surface engineered cementitious underlayments exceed commercial vinyl floor-covering requirements as a high-performance underlayment with compressive strengths ranging from 4,500 to 5,500 psi (31.0 to 37.9 MPa).
  • Innovative, self-sealing technology
  • Fast application, fast-setting allows for return of light trade traffic within hours
  • High compressive strength—stands up to commercial and institutional use
  • Ideal for renovating concrete subfloors—can be applied at various thicknesses
  • Can be applied to concrete surfaces without requiring mechanical profiling


Submittal Sheet


  • GREENGUARD Certification Yes

Physical Data

  • Approximate Compressive Strength 4,500 - 5,500 psi
  • Approximate Coverage 22 sq. ft.
  • Thickness Range 1/4 in. - 3 in.
  • Working Time 15 min.



Durock™ Brand Surface™ Product Demo Video

Documents & Files

Data/Submittal Sheets & Specifications

Data/Submittal Sheet (English)

Catalogs & Brochures

Brochure (English)

SDS, Certifications & Reports

SDS (English)
SDS (Spanish)


EPD (English)

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