This was to be my 3rd awning and I expected to take down the old and pop this in the existing brackets.  The prior two were purchased over the course of approximately 15 years from Christmas Tree Shop for the same price.  This is of lower quality (metal thickness and diameter) and not a solid 12 foot unit.  First clue, 12 foot awnings can’t fit in 74 inch boxes.  The cylinder comes in 3 pieces vs a solid 12 foot piece, same for front frame, etc. I reread the ad and find no indication you have to BUILD the awning from MANY pieces before you can begin the installation process.   Just FYI. For me, not as expected.