My side walk thru door was getting hammered with rain creating the potential for mold. To help keep everything dry, we built an awning.
I could not find info on how to attach a frame for an awning to a metal building, here is what we did. I used the self sealing metal roof screws to attach the brackets to the side. The brackets are screwed into the 2×6’s used to frame the building. VERY secure!
Then we drilled holes and bolted the 4×4’s to the brackets set in concrete and started framing.
For extra support I cut and drilled 4×4’s for side support:
Then finished up the framing:
Here it is with the metal sheets attached.
Still need to add the end and side flashing, but in my opinion the big part is done.