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Levelrock® Brand 3500 Series Floor Underlayments



Superior performance for higher-traffic areas in both wood-frame and light-commercial construction. Levelrock® Brand 3500 Series Floor Underlayments have compressive strengths from 3500 to 4500 psi.

Main Features

With compressive strengths from 3500 to 4500 psi, Levelrock® Brand 3500, Levelrock® Brand 3500 Green and Levelrock® Brand 3500 Pre-Sanded Floor Underlayments contribute exceptional sound resistance and may be used with a Levelrock® Brand sound mat or sound board for improved STC and IIC ratings. These underlayments:
  • Install over wood and concrete subfloors
  • Meet vinyl industry commercial specifications
  • Apply at just ¾ in. – 3 in. thicknesses
  • Are engineered and manufactured by USG


  • Administrative Offices
  • Auditoriums and Gymnasiums
  • Bars Restaurants and Dining Areas
  • Cafeterias
  • Classrooms
  • Convention and Meeting Rooms
  • Corridors and Hallways
  • Department Stores and Boutiques
  • Dormitories
  • Executive Areas, Conference Areas and Board Rooms
  • Galleries and Exhibit Spaces
  • Grocery Stores
  • Guest Rooms and Suites
  • Health and Fitness
  • Kitchens and Food Prep Areas
  • Laboratories, Operating Rooms and Imaging Rooms
  • Lobbies and Reception Areas
  • Locker Rooms, Shower Areas and Pools
  • Mall Interior Spaces
  • Mechanical Rooms
  • Media Centers, Music Rooms and Libraries
  • Multi-Family Residential and Condos
  • Nurseries and Birthing Rooms
  • Open Plan Offices
  • Patient Rooms
  • Restrooms, Utility Rooms and Loading Docks
  • Single-Family Residential
  • Stairways and Elevator Shafts
  • Theatres
  • Traditional Offices


Submittal Sheet


  • GREENGUARD Certification Yes

Physical Data

  • Approximate Compressive Strength 3,500 - 4,500 psi (24.1 - 31.0 MPa)

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English)

White Papers

White Paper (English) PDF 249.5 KB

Catalogs & Brochures

Brochure (English)

Project Profiles

Project Profiles (English) PDF 514.1 KB

Installation & Technical Manuals

Technical Guide (English)
Installation Guide (English) PDF 735.8 KB

SDS, Certifications & Reports

SDS (English)
SDS (French) PDF 101.0 KB
Evaluation Reports (English) PDF 639.9 KB


HPD (English)

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