I don't have first hand experience in actually seeing them mix it like you do but from the satellite photos, it looks like that little ol machine shed was about 700 feet long and about 250 feet wide. I wish I had a machine shed that size.
I wasnt talking about that one in Beirut.
I was talking about the one in Michigan where they did the weird science. BTW, they were NOT ALLOWED to store any of the stuff there at that plant. They had to bring it in from someplace to that place and do their thing, and then after it was mixed, it had to be taken to the blasting site ASAP and used. So they had to plan ahead-which must have been a real SOB to do sometimes. Some of the more nasty stuff they had to mix on site. So they never had many “tons” stored at that facility for long. Matter of fact, he said it was never more than a U-haul sized truck, or two, at a time and if it had to sit for a day, it was stored scattered and not in one pile.
My buddies said it made a person get the willys.