May two houses join in one eruv via a window that is entirely above ten handbreadths from the ground?
Synopsis
Unlike courtyards that require the window to be within ten handbreadths of the ground, two houses may be able to join via a high window. The question is whether this is permitted and what the minimum window size is.
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May one carry items that were in a courtyard on Shabbat to another courtyard, roof, or enclosed yard (karpaf) without an eruv between those domains?
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Can an inverted vessel (ספל) affixed to the top of a wall reduce its effective height to enable carrying or joint eruv?
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Related from other topics
May one use a ledge (ziz) that protrudes from a wall into a public domain, if the ledge is above ten tefachim and has a window opening onto it?
Reshut HaRabbim — Public Domain
Does a roof adjacent to a public domain that is within ten handbreadths on the public-domain side but above ten handbreadths on the courtyard side require a fixed ladder before its owner may use it from the courtyard?
Side Beam Placement Rules
May two Jews whose houses share only windows (but no door) make an eruv through those windows when a non-Jew also lives in the courtyard?
Distance Measurements for Eruv
Do Shabbos techumin (limits) apply to someone traveling more than 10 tefachim above the ground?
Slaughtering on Yom Tov
Discussion
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