Booths were erected in their cities or towns, either in their streets or gardens, or the tops of their houses, Nehemiah 8:16, which were made flat, and therefore were proper and fit for that use.
Related Commentaries of Leviticus 23:42
Leviticus 23:42
42 Ye shall dwell in booths seven days; all that are Israelites born shall dwell in booths: