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Pinnacle

A product you can stand behind... and on

Pinnacle® is a premium T&G sub-floor that is engineered to be strong, durable and withstand the effects moisture has on panel edges. Pinnacle delivers a high-performance sub-floor that lets you build faster without sacrificing material quality or profitability.

FEATURES AND BENEFITS

  • The 4×8, 23/32 T&G panels are engineered to be used in sub-floor applications (19/32, 7/8 and 1-1/8 Pinnacle is available in some markets)
  • Engineered for strength, durability and overall performance
  • The T&G profile is designed for fast and easy installation
  • Backed by a 50-year limited warranty
  • 200-day no-sand guarantee that covers you well beyond typical construction cycle times
  • Panels will not delaminate and there are no core voids or knots
  • To show that a premium sub-floor has been used, a Pinnacle logo is printed on every panel
  • No added urea-formaldehyde resins, CARB exempt
  • A premium sub-flooring that can help control costs, shorten build times and reduce hassles
  • Meets or exceeds the PS 2 standards and is APA grade stamped as exposure 1 panel

Pinnacle is suitable for carpet, wood strip or parquet flooring (must be installed to manufacturer’s and/or NWFA instructions). Vinyl flooring requires the use of the vinyl manufacturer’s approved underlayment. Follow material manufacturer’s instructions. If finished floor is to be adhesive-bonded resilient flooring, always use an approved underlayment, following the manufacturer’s instruction, over West Fraser sub-floor OSB.

Premium Sub-Flooring

  • Sizes / Lengths:
    4×8
  • Thickness:
    19/32, 23/32, 7/8, 1 1/8
  • Edge Seal Color:
    Blue
  • Warranty:
    50 Year Limited Warranty, 200 Day No-Sand Guarantee
Have any questions regarding this product?
Contact us today.

  • Product Documents

  • FAQ

    1. I have installed my sub-floor with the Grade Stamp up, does that affect the structural integrity of the panel or my floor?
    2. What is considered ‘Normal’ exposure when it comes to the amount of moisture a sub-floor receives?
    3. My sub-floor has seen a lot of rain, is there something I should be doing?
    4. My sub-floor panel has some flaking and the edges look swollen, do I need to replace my sub-floor?
    5. Can I paint my sub-floor?
    6. I am concerned about my OSB sub-floor off gassing Urea Formaldehyde.
    7. Should I use an adhesive when installing my sub-floor?
    8. How much space should I leave in between panels when installing my sub-floor?
    9. I notice a strength axis indicated on my panels stamp. What does that mean?

    I have installed my sub-floor with the Grade Stamp up, does that affect the structural integrity of the panel or my floor?

    West Fraser T&G sub-floor panels installed with the grade stamp up does not affect the structural properties of the panel. All West Fraser sub-floor panels are marked with “this side down” for two reasons. First, the tongue and groove on West Fraser’s sub-floor are offset slightly from the center of the panel. If some panels are installed grade stamp up and some grade stamp down, there may be a small lip to contend with. Secondly, when the grade stamp is installed facedown, it allows building inspectors to easily read the information indicated on the panel stamp once the flooring is in place.
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    What is considered ‘Normal’ exposure when it comes to the amount of moisture a sub-floor receives?

    Unfortunately, there is no definitive answer because there are too many climate variables across the country. Exposure 1 panels will withstand normal delays in construction without the structural properties of the panel being affected. If your sub-floor gets wet, it is imperative that the panels be allowed to dry out completely. If the floor gets a lot of rain there could be some swelling at the edges, however, this does not affect the structural properties of the panel. After the house has been closed in, the floor has been completely dry and ready for the finished flooring any swollen edges can be sanded level without affecting the structural properties of the panel.
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    My sub-floor has seen a lot of rain, is there something I should be doing?

    Until the house is dried in the best practice is to remove any standing water using a broom or squeegee. It is important that sanding should not be done until the house is completely dried, drywall and painting is done and the HVAC is running. Sanding before that will open the cells in the wood and allow more moisture absorption and that means you will likely see more swelling.
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    My sub-floor panel has some flaking and the edges look swollen, do I need to replace my sub-floor?

    No, you do not need to replace your sub-floor. When a sub-floor is exposed to moisture your panels might experience some surface flaking and the edges might swell. These do not affect the structural properties of your panel. It is common practice after the sub-floor has completely dried to sand the edges so they are even, however there is no need to worry about minor surface flaking as they are cosmetic and not structural.
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    Can I paint my sub-floor?

    Yes, all West Fraser T&G sub-floor panels can be painted. The industry usually recommends a high-quality acrylic latex paint and primer. It’s important to note that the face stamps are ink and not suppose to come off and they may be difficult to cover.
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    I am concerned about my OSB sub-floor off gassing Urea Formaldehyde.

    There is no added urea formaldehyde in West Fraser’s OSB panels. It is not possible to make OSB with urea formaldehyde because it is not a water proof resin. OSB is approximately 5% resin and 95% wood fibre. Testing by independent labs show that formaldehyde from OSB is essentially zero. West Fraser’s OSB is also exempt from CARB (California Air Resource Board) and other strict emission requirements around the word.
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    Should I use an adhesive when installing my sub-floor?

    Yes, using an adhesive when installing sub-floor panels is recommended and may be required. At a minimum, sub-floor adhesives must meet current industry test standards. If an adhesive is used, apply only enough to install two or three panels at a time and fully fasten the panels before continuing. We also recommended running a small bead of glue in the groove of the panels during installation for added strength and stiffness to the floor.
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    How much space should I leave in between panels when installing my sub-floor?

    You must space panels 1/8” apart on the 4’ edges. An easy way to ensure prospering spacing is by using a 10d nail as a spacing guide. The T&G profiles are self spacing.
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    I notice a strength axis indicated on my panels stamp. What does that mean?

    When you are installing your sub-floor panels they should be installed over two or more spans with the strength axis perpendicular to the supports.
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  • Installation

    West Fraser structural panels are to be installed according to the APA’s (The Engineered Wood Association) E30 – Installation Instructions (Engineered Wood Construction Guide), the appropriate building code and/or the design professional’s specifications.

    Below are some key installation points and tips

    A nail makes a great space guide.

    A nail makes a great space guide.

    1. Space panels 1/8″ apart on the 4′ edges. Using a 10d nail as a spacing guide is a quick and easy way to ensure proper spacing. (See photo and watch video below.)
    2. Lightly butt the T&G together.
    3. Ensure the joists are aligned, uniform, spaced correctly, level and square before installing any sub-floor.
    4. Install panels with the major strength axis perpendicular to supports.
    5. Install T&G panels with the APA grade stamp down.
    6. Fastener Spacing – consult your local building codes for local requirements, the E30 – Installation Instructions (Engineered Wood Construction Guide) and/or your design professional’s specifications.
    7. Fasteners must be within 3/8″ from edges and corners to ensure the panels stay flat to the joists.
    8. If using Rimboard, refer to APA’s Floor Panel T&G Trim Guidelines.
    9. Gluing sub-floor panels is recommended and may be required. At a minimum, sub-floor adhesives must meet current industry test standards. If glue is used, apply only enough glue to install 2 or 3 panels at a time and fully fasten the panels before continuing.
    10. Running a small bead of glue in the groove of the panels during installation adds strength and stiffness to the floor.
    11. Provide 3/4″ expansion joints for every continuous section of panels exceeding 80 feet in length. See APA U425 for details.

    Try our free online tool, Onsite. Great while on the jobsite or training new employees, Onsite has lots of videos and information, plus it focuses on the 3 most common mistakes made when installing OSB. There are videos for Sub-Floor, Wall and Roof applications plus a Trouble Shooting section. The online tool is a guide only. Always consult the local building codes, design professional’s specifications or the APA’s E30 for details that may apply to your application.

    SubFloor Installation

    One of the most common mistakes made during the installation of sub-floor structural panels is not leaving a gap along the 4′ ends of the panels by butting the panels together. Not leaving space to allow for expansion can lead to potential problems. Butting panels tightly together can cause callback issues that add cost and impact the bottom line. Pinnacle panels are sized to allow for this spacing and leaving 1/8″ between panels is a requirement. Using a 10d nail as a space guide is a quick and easy way to ensure spacing.

    These publications by the APA The Engineered Wood Association M300 (Cut Callbacks with Proper Spacing), G440 (Brace Walls with Wood), E305 LA (Construyendo un sistema de piso solido sin chillidos) and TT-024 (Heavily Loaded Drywall Carts) provide excellent information and guidance to anyone using structural panels and should be read in addition to the installation requirements. Downloadable PDF available in APA Publications section.

    The following floor coverings may be installed over Pinnacle Premium Sub-Flooring

    • Commercial and residential carpet with under pad
    • Ceramic tile and lightweight concrete*
    • Hardwood floors**
    • Vinyl flooring requires a suitable underlayment***

    Always follow the floor covering/installation product manufacturer’s application recommendations.

    * Follow the industry and flooring manufacturer’s installation instructions with special attention to the requirements regarding the job-site moisture conditions for the building, sub-floor and finished flooring before, during and after installation.
    **Hardwood flooring should be installed per the NWFA guidelines and/or the flooring manufacturer’s instructions. Special attention must be paid to the moisture content of the sub-floor and the flooring and relative humidity at the time of installation.
    *** The APA L335M for underlayment installation can be found in the Resources under the APA.

    Prevent Buckling with Proper Spacing

    Resources

    Visit the resources page for more information on product documents, forest certification, APA publications, seminars & trade shows.

Measuring Moisture in OSB Sub-floor Panels

Knowing the moisture content of your OSB sub-floor panel is an important indicator on whether to proceed with other stages of the build, especially if hardwood flooring is the next step. You need to know that using a moisture meter…

Does OSB emit Volatile Organic Compounds?

We recently received a message from one of our readers, and the Ol Sage thought he would pass it along as it is important to be concerned about Volatile Organic Compounds.

THANK A FRAMER

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How-to videos

Check out our helpful DIY videos and learn a variety of installation tips and tricks that will make you the best builder on the site.

All Product documents

Looking for a warranty form, safety sheet, or perhaps even a promotional brochure? Find them all here!