Our samples fulfillment partner is experiencing an outage and there will be a delay in all sample shipments. We will work with them to ensure all sample orders are processed once the issue is resolved.

We apologize for any inconvenience.

It looks like you entered an employee email address, but this is the customer sign-in. Use the link below instead.

Structural Panel Concrete Subfloor

Noncombustible concrete subfloor panels offer fast installation, structural stability, and 1- and 2-hour fire-rated assemblies. See code reports below. $5.10/sf MSRP* based on full truckload delivered to jobsite. *Subject to local service charges.



The only noncombustible structural cementitious panel manufactured in the United states. Structural Panel Concrete Subfloor is a cured-in-factory panel that is noncombustible, inorganic, mold-, moisture-, termite-resistant and dimensionally stable floor assembly suitable for many floor finishes. This Structural Panel can be used in mid-rise, modular, mezzanine, theater and other applications, providing the structural stability as well as other benefits such as design flexibility. Meets ASTM E136-16 for all types of noncombustible construction. Subfloor Code Reports ICC ESR-1792; Progressive Engineering Inc. PER-13067 UL-certified fire-rated assemblies www.USGStructuralUL.com USG Structural Fire & Acoustics Manual www.USGSCP100.com USG Structural Modular Design Manual www.USGSCP110.com Reoccurring CE Seminar Schedule www.usg.com/structuralpanels

Main Features

Structural Panel Concrete Subfloor is a breakthrough in noncombustible construction.
  • Offering 1-, 2-and 3-hour fire rated floor/ceilingassemblies
  • Lighter than precast and poured-in-place concrete
  • Meets sound rating needs
  • Strong, durable concrete panel
  • Dimensionally stable:panel will not buckle or warp like wood sheathing
  • Easy install:circular saw for cutting, screws for fastening
  • Design flexibility: the high compressive and flexural strength enables you to build higher for less
  • Meets the criteria of ASTM E136-16 for use in all types of noncombustible construction
  • Made in the USA


  • Auditoriums and Gymnasiums
  • Bars Restaurants and Dining Areas
  • Cafeterias
  • Classrooms
  • Corridors and Hallways
  • Department Stores and Boutiques
  • Dormitories
  • 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
  • Restrooms, Utility Rooms and Loading Docks
  • Stairways and Elevator Shafts
  • Theatres
  • Warehouses


Installation Guide


Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English) PDF 496.4 KB
Architectural Specification (English) DOCX 96.2 KB

Catalogs & Brochures

Brochure (English) PDF 77.9 MB

SDS, Certifications & Reports

SDS (English) PDF 290.6 KB
SDS (Spanish) PDF 292.5 KB


HPD (English) PDF 102.7 KB
EPD (English) PDF 1.2 MB

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.

q & a

  • What are the sound ratings on this assembly?

    A: Bare floor = min. STC 54 with G556 or H505 on 10" o.c. C-Joist; attainable value over a range of floor covering:

    The following acoustic ranges of STC/IIC values are available.

    • Code minimum STC 50 / IIC 50 and higher
    • Premium STC 55 / IIC 55 and higher
    • Deluxe STC60 / IIC 60 and higher
  • Will USG Structural Panel meet code requirement?

    A: USG Structural Panel is compliant with the 2012, 2015 and 2018 IBC.

  • What are USG Structural Panels?

    A: USG Structural Panels are a portfolio of three products: Subfloor, Roof Deck and Foundation Wall. These cured-in-factory 3/4" panels are high-strength, fiberglass reinforced concrete panels for use in noncombustible construction. The panels are certified noncombustible by Underwriters Laboratories Inc (UL) in accordance with the current version of ASTM E136. Taking the place of traditional poured concrete & metal deck in cold-formed steel framing, USG Structural Panels are a lighter & easier solution, requiring only the basic carpentry tools for installing these panels.

  • Can the USG Structural Panels be used as a wall?

    A: Yes, static shear wall capacities available in Product Evaluation Report PER-13067


  • Is there a UL fire-rated system with USG Structural Panel?

    A: Yes. We have the simplest 2-hour assemblies G556 and H505 with one layer of drywall (ULIX). We have the most comprehensive testing database of any panel for different assemblies, which can be found at: www.USGStructuralUL.com

  • Can the USG Structural Panel be left bare?

    A: No, must be covered and protected from traffic wear.

  • Who can install USG Structural Panels?

    A: The carpenter typically leads the installation of USG Structural Panel, which allows you to eliminate the many trades needed to pour concrete.

  • What are the common applications for USG Structural Panels?

    A: Subfloor is typically used in midrise buildings, health facilities, theaters, hotels, residential buildings and homes, multipurpose midrise buildings, panelized construction or in simple platforms or mezzanines. It is also used as the lightweight floor in permanent modular construction.

    Roof Deck can be used for commercial low-slope or residential sloped roofing, balconies, and canopies. To see more information on what can be applied to USG Structural Roof Deck, reference High Performance Roof Applications (SCP68).

    Foundation Wall can be used for foundation renovation or new building foundation construction, full-height basements, storm shelters, crawl space, and cellars.

  • How do you install USG Structural Panel Concrete Subfloor?

  • Where has USG Structural Panel been installed?

    A: View USGStructuralVideos.com for Project Profiles on just a few of the projects that have used USG Structural Panel.

  • Where can I find the load tables for USG Structural Panel Concrete Subfloor?

  • What happens if the USG Structural Panel Concrete Subfloor gets slightly damaged on the job-site?

    A: Refer to our repair manual that takes you through the steps of repairing damages of square holes max. 6" by 6" or round holes max. 6" in diameter. http://www.USG.com/StructuralRepairManual

  • Which side is the top on USG Structural Panel Concrete Subfloor?

    A: The side with the labeling is the top side for floor applications.

  • How do we achieve meaningful time saving on a project using USG Structural Panles?

    A: USG Structural Panel is easy to install (lay, fasten), and only requires a single trade. Unlike poured concrete, it can be installed in any weather and it eliminates the wait to cure and dry. Other trades (e.g. mechanical and electrical) can begin work sooner. Schedule compression leads to lower project cost and faster time to open.

  • What can be used as an underlayment?

    A: USG recommends min. 1/4" USG Fiberock® Brand Underlayment board or 3/4" depth pour of USG Levelrock® Brand 2500.

  • What are the sizes of the USG Structural Panels?

    A: USG Structural Panels are:

    • 3/4" thick
    • 4' x 8'; 4' x 6'; 4' x 6'-8" panelsA
    • Pallet: 20 panelsB
    • Edge: T&GC
    1. Panels can be custom cut
    2. Can be requested to have 10 panels per pallet.
    3. Can also be Square Edge if requested.
  • Are all panels equivalent to USG Structural Panel?

    A: No. USG Structural Panel is the only UL-certified noncombustible cementitious panel in North America. USG Structural Panel offers the simplest 2-hour floor/ ceiling fire assembly which saves time and money.

  • Do you need to finish the joints when using USG Structural Panel Concrete Subfloor?

    A: No joint finishing is typically required for USG Structural Panels when used in a sub-floor application.

  • What are the benefits of using USG Structural Panels vs. poured concrete?

    USG Structural panels are:

    • Lighter – less weight, less overall structural material
    • Faster – no wait for curing, fewer trades (carpenters can install USG Structural Panels), greater schedule flexibility, faster time to open
    • Lower risk – no moisture uncertainty, cured so there is no excessive free water
    • Lower total installed cost – fewer trades, less material, less equipment, faster time to open
  • What floor coverings can be used over USG Structural Panel Concrete Subfloor?

    A: A variety of floor coverings can be used but an engineered underlayment is recommended over the panel except with carpet and pad.

  • 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).