L sill
noun Carpentry.
a sill for a building frame composed of a plate resting on the basement wall and a header or joist at the outer edge of the plate.
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Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?
Compare box sill.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020