Our FLOOR products incorporate an engineered taper to the top of all four edges, minimizing floor surface unevenness that can occur after installation due to precipitation and humidity. Our proprietary tongue & groove (T&G) technology profile provides strength, stiffness and durability.

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Fire resistant structures generally make buildings heavier − the stronger the walls, the stronger the floors need to be. West Fraser’s OSB makes horizontal structures stronger, offering increased protection from natural disasters such as earthquakes. Construction Company

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OSB Specifications

ApplicationJas grade classThickness (mm)Nominal width (mm)Length (mm)Maximum span (mm)Nayl type / Nail spacing
OSB dimensions and span ratings for post and beam constructionFloor sheathing124.0
28.0		9101820910CN65
150mm
OSB dimensions and span ratings for post and beam constructionFloor sheeathing215.09101820455CN65
Perimeter spacing
150mm
Intermediary spacing
200mm
124.0
28.0		9101820910
OSB dimensions and span ratings for post and beam construction

Roof Wall Floor

To request a cut sample of our OSB, please contact us via the sample request form.

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