Craft · 6 pages · 12 min

How plywood is layers across each other

Plywood is thin wood sheets glued with the grain of each sheet square to the next.

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From the opening

Plywood is a stack of thin wood veneers, called plies, glued together so the grain of each ply runs at right angles to the grain of the ply beside it. An odd number of plies lets the two outside faces share one grain direction while the core crosses them. The opening covers grains alternate at right angles, an odd count aligns the faces, and each ply braces the next.

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Inside

  • Grains alternate at right angles
  • An odd count aligns the faces
  • Each ply braces the next
  • The edge shows the stack
  • Where the idea stops applying
  • A distinction worth keeping

Sources

  • Cross-laminated wood veneer plywood
  • Rotary-peeled veneer in plywood