Webosb (oriented strand board) is engineered to provide a strong, stable panel that resists delamination and warping. Span rated sheathing 32/16 (roof/floor on center. Web7/16 4x8 osb at menards®. Webosb (oriented strand board) is engineered to provide a strong, stable panel that resists delamination and warping. Suitable for load bearing applications in. Webosb (oriented strand board) is engineered to provide a strong, stable panel that resists delamination and warping. Span rated sheathing 48/24 (roof/floor on center. Web4 days ago · model number: Weboriented strand board (osb) a versatile engineered structural panel often used for floor decking and wall/roof sheathing. Quality builders rely on weyerhaeuser osb panels for.