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

Documents & Files

Submittal Sheets & Specifications

Catalogs & Brochures

Installation & Technical Manuals

SDS, Certifications & Reports