Oriented strand board

OSB is easily identifiable by its characteristic wood strands.

OSB in production before gluing in a thermal press

Oriented strand board (OSB), also known as sterling board, sterling OSB, flakeboard, aspenite, and smartply in British English, is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. It was invented by Armin Elmendorf, California US in 1963. OSB may have a rough and variegated surface with the individual strips of around 2.5 × 15 cm (1" × 6"), lying unevenly across each other and comes in a variety of types and thicknesses.

单词	Oriented strand board
释义	Oriented strand board 英语百科 Oriented strand board Oriented strand board (OSB), also known as sterling board, sterling OSB, flakeboard, aspenite, and smartply in British English, is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. It was invented by Armin Elmendorf, California US in 1963. OSB may have a rough and variegated surface with the individual strips of around 2.5 × 15 cm (1" × 6"), lying unevenly across each other and comes in a variety of types and thicknesses.
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