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Item: 123507

Levelrock® Brand 2500 Series Floor Underlayments

Offers the highest compressive strengths in its class (2000 to 3200 psi), providing low-thickness applications over plywood subflooring in single-family, multi-family and hotel/motel construction.



Main Features

Levelrock® Brand 2500 Series and Levelrock® Brand 2500 Green Floor Underlayments help maximize sound isolation between floors/units and may be used with a Levelrock® Brandsound mat or sound board for improved STC and IIC ratings. Engineered and manufactured by USG, these underlayments can be:

  • Poured before drywall is installed to help control mold and moisture
  • Installed at rates of up to 30,000 sq. ft. per day
  • Applied at just 3/4-in. thickness.


  • Corridors and Hallways
  • Dormitories
  • Guest Rooms and Suites
  • Multi-Family Residential and Condos
  • Single-Family Residential

Ask a question

Our customer support team will get back to you as soon as possible.

Question Guidlines

  • Questions should relate to this product specifically.
  • For help with pricing, availability, or delivery, please call 800.874.4968 (Monday–Friday, 7am–6pm Central)
  • All questions and answers follow USG’s Terms & Conditions.
  • Your question and USG’s answer may be posted to this page in the future, but none of your personal info will be included.

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q & a

  • What is Levelrock® and how do I become an approved applicator?

    Levelrock® is a gypsum-based self-leveling underlayment sold to a network of certified applicators. If you are interested in becoming a Levelrock® applicator, please contact your sales rep.

  • Have a question?

    Let us do the research. We'll get back to you as quickly as we can.

    Ask USG
  • Need help right away?

    Call our Technical Support team at 800-874-4968 (Monday-Friday, 7:30 am - 4 pm Central).