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EDGES & ANGLES
A piece of woodworking stock has , EDGES and CORNERS
  • A FACE is a flat surface, like the front or top of a box.
  • An EDGE is a line along which two faces come together.
  • A CORNER is a "point" on a shape, a vertex where several faces (and edges) come together.

ROUGH STOCK is NEVER perfect
ALL STOCK must be "DRESSED" to ensure that the edges and faces are "SQUARE"

What is "SQUARE"?
In most projects, it's important that your stock is properly DRESSED so that all faces are SQUARE to each other
  • Opposite Faces are parallel to each other
  • Adjoining Faces are at 90* to each other
  • These are also referred to as "RIGHT angles"

A "Square" is also a carpenter's tool with two edges meeting at 90* from each other used to trace or "scribe" perfect right angles.
Roofer's Angle
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Combination Square
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