What is the meaning of sill?

Horizontal members, which act as the base for subfloor systems, porches, or windows.

Barry Goldsmith
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APABarry Goldsmith. (2010). sill. Retrieved September 20, 2026, from http://smartdefine.org/sill/definitions/1163589
ChicagoBarry Goldsmith. 2010. "sill" http://smartdefine.org/sill/definitions/1163589 (accessed September 20, 2026).
HarvardBarry Goldsmith 2010, sill, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/sill/definitions/1163589>.
MLABarry Goldsmith. "sill" 21 October 2010. Web. 20 September 2026. <http://smartdefine.org/sill/definitions/1163589>
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