I worked at a woodshop years ago. We got raw lumber in and chopped it, ripped the bad stuff out, glued it together into lazy susans and breadboards, etc. For 3 years that I worked there they piled every piece of wood scrap in the south quadrant of the building. You could easily race semi trucks in the quadrants. So imagine that 4 times. They built tanks in them during WWII.
I had quit there a few months before the biggest fire I have ever seen. I just happened to be driving towards that shop when I saw the smoke cloud about 6 miles away. It looked like a mushroom cloud on fire when I crested an overpass close to the shop. Fire was well over 100' tall. No amount of fire trucks had a prayer of putting it out. Imagine about 25 semi trailers full of dried hardwood strips, all going up at once.
The entire building, like 2 blocks long, gone in less than an hour. The concrete turned to dust in spots.