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Levelrock® Brand 4500 Series Floor Underlayments



With compressive strengths of 4500 – 5500 psi these underlayments provide a smooth, hard surface over concrete slabs, pre-stressed concrete and concrete planks. Levelrock® Brand 4500 Series Floor Underlayments are ideal for commercial, institutional and rehab construction.

Main Features

Levelrock® Brand 4500 Floor Underlayments and Levelrock® Brand 4500 Pre-Sanded Underlayments accept a variety of floor coverings and exceed commercial vinyl floor-covering requirements. In addition:
  • These underlayments allow light traffic within hours of installation
  • The exceptional surface hardness resists indentation
  • Levelrock® Brand 4500 incorporates an innovative self-sealing technology that typically permits floor coverings to be installed without the need to seal the underlayment
  • These underlayments 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 PDF 326.1 KB


  • GREENGUARD Certification Yes

Physical Data

  • Approximate Compressive Strength 4,000 - 5,000 psi (27.6 - 34.5 MPa)

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English) PDF 326.1 KB

White Papers

White Paper (English) PDF 249.5 KB

Catalogs & Brochures

Brochure (English)

Installation & Technical Manuals

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

SDS, Certifications & Reports

SDS (English)
SDS (French) PDF 126.0 KB
Evaluation Reports (English) PDF 639.9 KB

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Question Guidlines

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  • For help with pricing, availability, or delivery, please call 800.874.4968 (Monday–Friday, 7am–6pm Central)
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