Learn גמרא דף יא: “גופא (tenth wide line) until “אשכחיה רב ששת ” (seven lines before the next Mishnah)
The gemara lists three halachos in regards to a צורת הפתח
1. The strength of the צורת הפתח
2. Requirement to have a היכר ציר – a hole to place the peg for the door
3. Whether the side posts need to extend all the way until the horizontal cross beam/string
How do we rule l’halacha?
Learn שולחן ארוך או”ח ס’ שס”ב סעיף יא
Why doesn’t the Shulchan Aruch require a היכר ציר as the gemara states this requirement without any opinions who disagreed?
Learn משנה ברורה ס”ק ס – סג
Why does the top string have a leniency over the side posts?
Learn משנה ברורה ס”ק סו
Note how the Mishna Berurah explains the mechanics of a צורת הפתח
What is the issue of the top string swaying in the wind?
How much swaying is acceptable?