This one has a little history already. As I was burning it, my propane torch started leaking I knew this was not good so I tried to tighten the hose where it was leaking. It was reverse threads so I unscrewed it more intsead of tighting it. So the leak got worse. I quickly shut the torch off, which was the wrong thing to do. The flame backflashed and ignighted the leaking hose, which exploded into a ball of flames in my hands as I was looking at it. So I threw the flaming hose into a pile of wood, sawdust and tools in my shop. As my tools are starting to catch on fire I finaly put out the burning hose with a fire extinguisher. What I learned keep the propane hoses tight. What I lost some of my hair, eyebrows and lashes all my nose hair and a lot of arm hair. Just thought I would add my story of what was involved in the creating of this shelf. Thanks for looking