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definitions

box sill

noun Carpentry.

a sill for a building frame, composed of a plate resting on the basement wall and a joist or header at the outer edge of the plate, as well as a soleplate for the studs resting either directly on the joists or on the rough flooring.

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Nearby words

  1. box plot,
  2. box room,
  3. box score,
  4. box seat,
  5. box set,
  6. box social,
  7. box spanner,
  8. box spring,
  9. box stall,
  10. box staple
Compare L sill.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019