Question:
Can children build forts on Shabbos using forts and blankets? Is it Boneh or Ohel?
Answer:
Even though it is only a temporary ohel (tent) it is still forbidden on Shabbos. The question is after it has been made can one dismantle it. Some say that the child cannot prohibit the usage of the blankets that do not belong to him.
Sources:
O:CH 316:1