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Blue Ribbon® OSB Rated Sheathing

  • Span and exposure rated sheathing with dimensional stability
  • No core voids, knots or splits
  • Quality base layer for wall sheathing applications

Product Details

Blue Ribbon OSB sheathing panels contain no core voids, knots, or splits, and they provide a quality base layer for wall and roof sheathing applications. They are ideal for use in residential and light commercial construction, offering the span, impact resistance, and uniformity needed to keep your jobs running smoothly.

Product Specifications

AVAILABLE SIZES (MILLS 451, 475, 500, 530)

Square Edge3′-11 7⁄8″ (1.216 m) x 7′-11 7⁄8″ (2.435 m) – sized for 4′ x 8′

AVAILABLE SIZES (MILLS 532)

Square Edge3′-11 13⁄16″ (1.162 m) x 7′-11 7⁄8″ (2.435 m) – sized for 4′ x 8′
3′-11 13⁄16″ (1.162 m) x 8′-11 7⁄8″ (2.740 m) – sized for 4′ x 9′
3′-11 13⁄16″ (1.162 m) x 9′-11 7⁄8″ (3.044 m) – sized for 4′ x 10′

BUILDING CODE PERFORMANCE CATEGORIES, PANEL THICKNESS

7/16 CAT0.418″ (10.61 mm)
15/32 CAT0.451″ (11.45 mm)
1/2 CAT0.483″ (12.26mm)
19/32 CAT0.578″ (14.68 mm)
23/32 CAT0.703″ (17.85 mm)
7/8 CAT0.849″ (21.56 mm)
1-1/8 CAT1.091″ (27.71 mm)

SPECIFICATIONS

Length/Width Tolerance± 1/16” (± 1.6 mm)
Straightness Tolerance± 1/16” (± 1.6 mm)
Squareness Tolerance± 1/8” (± 3.2 mm)
Testing AgencyAPA – The Engineered Wood Association
ClassificationExposure 1 : OSB suitable for uses not permanently exposed to the weather. Panels classified as Exposure 1 are intended to resist the effects of moisture on structural performance as may occur due to construction delays, or other conditions of similar severity.
Code Fire ClassificationClass III or C
Flame Spread Rating76-200, smoke developed index <450
Building Code CompliancePS 2-18

CERTIFICATIONS

FSC (applies to Englehart only – Mill 530)

Resources

EPDs
Installation
Literature
Safety Data Sheets
Specifications
Warranties
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AWC EPD North American Oriented Strand Board OSB
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APA Engineered Wood Walls Construction Guide
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APA Engineered Wood Construction Guide Floors 2019
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APA Engineered Wood Construction Guide Roofs E30 2020
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Georgia Pacific BlueRibbon OSB Flyer
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Georgia Pacific OSB Sub Floor Flyer
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Wood and Wood Products Safety Data Sheet-English Canada
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Wood and Wood Products Safety Data Sheet-English US
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Wood and Wood Products Safety Data Sheet-French Canada
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Wood and Wood Products Safety Data Sheet-Spanish Mexico
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BlueRibbon OSB Oriented Strand Board Specifications
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BlueRibbon Rated Sheathing Specifications
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BlueRibbon Struc 1 Spec Sheet
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BlueRibbon OSB Warranty
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FAQs

Can OSB be used for outdoor projects?

OSB is not recommended for outdoor projects. OSB is considered an Exposure 1 panel, which means they may be used for applications where construction delays may be expected prior to providing protection. But OSB is not suitable for long-term exposure to the weather.

Do your panels meet formaldehyde emissions standards?

Yes, Georgia-Pacific plywood and OSB panels only use moisture resistant adhesives that contain no added urea formaldehyde resins, and are therefore exempt from U.S. EPA and California formaldehyde regulations due to their very low emission rates.

How many sheets are in a unit of OSB?

The number of panels in a unit of OSB varies depending on the type and thickness of product. On sheathing products, the piece count is typically stenciled on the side of the unit. Other products have corrugated side protectors that should indicate piece count. If you need a piece count and neither of those are visible, please contact GP at 800-284-5347.

Is there a difference between span ratings for OSB and plywood?

No, span ratings for similar thicknesses are the same.

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