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Watch Board Width

Which direction across a board might need room to move?

What you’re testing

Set up the comparison

Mark the width and length of an identified prepared board. Save the width reading and repeat it later at the same spots.

Solid-wood board
↑Check width at marked points↓
record date and real ruler reading
The arrow marks where to measure. It does not predict a change.

What you need

  • One identified, prepared solid-wood board
  • Pencil marks at two width-check locations
  • A real ruler and dated record card

What to do

  1. Ask an adult to identify the face, end, length, and width of the board.
  2. Mark two width-check locations and record the date and readings.
  3. Keep the board in an agreed location and repeat the readings later.
  4. Compare the dated results. If no change is visible, record that too.

What should you look for?

Did the width reading change? Check the same locations and units before comparing.

How could this help your build?

You can ask whether a wide panel in a project needs room for seasonal movement.