0%

ALL meanings of box sill

box sill
B b
  • noun box sill 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. 1
Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?