Why was the outer fence around the tabernacle made so high?
The outer fence was made high—about seven and a half feet—so no one could simply look in. It screened the tabernacle area from the view of the casual onlooker, serving as a visual barrier to keep the sacred area from idle observation.
Les explains that the outer fence around the tabernacle was roughly 75 feet wide and about seven and a half feet, or two and a half cubits, high. It was made high enough that nobody could just simply look in, because this outer fence was intended to keep the tabernacle area from the view of the casual onlooker. He also notes that the tabernacle was always set with the gate in that outer fence facing east, where Judah led.