Red Seal Carpenter Practice Exam 2025 – All-in-One Resource to Master Your Certification!

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What does "OSB" stand for in carpentry terminology?

Oriented Strand Board

In carpentry terminology, "OSB" stands for Oriented Strand Board. This engineered wood product is made from strands of wood that are oriented in specific directions and bonded together with adhesives. The orientation of the strands enhances the tensile and compressive strength of the board, making it suitable for various structural and non-structural applications, including walls, roofs, and floors. OSB is favored for its strength, durability, and cost-effectiveness compared to traditional plywood.

Other terms listed, like Open Structural Beam or Organic Surface Board, do not represent standard materials or terms recognized in carpentry, which can lead to confusion in understanding construction materials. Therefore, the recognition of OSB as Oriented Strand Board is essential for carpenters when selecting materials for various projects.

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Open Structural Beam

Organic Surface Board

Overlaid Solid Board

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