Building Materials
Seasoning of timber is essential to remove

Roughness of timber
Sap from timber
Twisted fibre from timber
Knots from timber

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Building Materials
A queen closer is a

Brick having the same length and depth as the other bricks but half the breadth
Brick laid with its breadth parallel to the face or direction of wall
Brick laid with its length parallel to the face or direction of wall
Brick with half the width at one end and full width at the other

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