Here is a security door I finished this week for my shop. Ive been meaning to build one for a couple years now (ever since I built this shop) and finally got around to it. If someone broke in they would have an absolute hayday and for me an absolute nightmare so this brings me much peace of mind. The frame around the door is secured to the building with 5/16" bolts which run clear through the wall so the door isn't coming down unless the wall comes down.
I was going to powder coat it but figured heck with it Ill leave it rust. It matches the color of the shop a bit anyway.