Once the framing is in place, the steel header can go in. It can be cut to size if necessary. Since we’re installing two doors, our header is extra wide to accommodate two 24″ doors. Joiner kits are available for even wider expanses.
Both the header and steel uprights are secured on brackets. The uprights are plumbed and fastened to the top of the header track. Here you can see where the door will eventually slide right in between the vertical uprights.