Box sill | Article about box sill by The Free Dictionary
Sill level: Meaning, importance, effect of absence
word usage - Is it called a threshold or sill or door frame? - English Language Learners Stack Exchange
Sill Meaning In Urdu | Daasa داسا | English to Urdu Dictionary
Lintel Level | Lintel Height | Functions Of Lintel Level | 3 Difference Between Lintel Level And Sill Level
Window sill - Wikipedia
meaning - What is the name of the horizontal bar that intersects a window mullion? - English Language & Usage Stack Exchange | Window parts, Horizontal, Windows
Sill Definition, Meaning & Usage | FineDictionary.com
word usage - Is it called a threshold or sill or door frame? - English Language Learners Stack Exchange
Sill - definition of sill by The Free Dictionary
Sill level: Meaning, importance, effect of absence
What Is a Window Sill? It Isn't What You Think
Window Sill History, Purpose & Design | What is a Window Sill? - Video & Lesson Transcript | Study.com