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

 

Blue edge seal helps prevent moisture intrusion.

 

Can also be used in wall sheathing applications.

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SPECS

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

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Square Edge 

3′-11 7⁄8″ (1.216 m) x 7′-11 7⁄8″ (2.435 m) – sized for 4′ x 8′

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 Tongue & Groove 

3′-11 1⁄2″ (1.206 m) x 7′-11 7⁄8″ (2.435 m) – sized for 4′ x 8′

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BUILDING CODE PERFORMANCE CATEGORIES, PANEL THICKNESS

 

7/16 CAT 

0.418″ (10.61 mm)

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 23/32 CAT 

0.703″ (17.85 mm)

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SPECIFICATIONS

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Length/Width Tolerance 

± 1/16” (± 1.6 mm)

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 Straightness Tolerance 

± 1/16” (± 1.6 mm)

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 Squareness Tolerance 

± 1/8” (± 3.2 mm)

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Classification 

Exposure 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.

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Code Fire Classification : Class III or C

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Flame Spread Rating : 76-200, smoke developed index <450

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Building Code Compliance : PS 2-10

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