Oriented Strand Board (OSB)

Definition

Oriented Strand Board (OSB) is a building panel composed of long shreds of wood fiber oriented in specific directions and bonded together under pressure. It is commonly called "strand board".

Purpose

OSB is used in construction as a cost-effective and versatile alternative to plywood. It provides structural strength and durability for various applications, including flooring, wall sheathing, and roofing.

Examples of Use

• Wall Sheathing: Used as a structural covering for the exterior walls of buildings.
• Roof Decking: Provides a solid base for roofing materials.
• Subflooring: Installed under finished flooring to provide stability and support.

Related Terms

• Plywood: A building material made from thin layers of wood veneer bonded together.
• Particle Board: A composite material made from wood chips and resin, used for interior applications.
• Engineered Wood: Man-made wood products designed for specific structural uses.

Notes

• Strength and Durability: OSB is engineered for strength and can be used in load-bearing applications.
• Environmental Impact: OSB is considered more environmentally friendly than plywood, as it utilizes smaller trees and wood scraps.