Are there uneven gaps between a commercial steel door and frame? This video shows how to fix when the door clearance is too tight at the TOP or BOTTOM lock side of the opening, and when the entire door is shifted too far toward the HINGE or LOCK side of the opening.

To prevent this issue from occurring in the first place, use the Steel Door Institute's Installation guides at:
https://www.steeldoor.org/installation/

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00:24 Preparation and inspection
02:11 Issues that can be corrected with shims
02:43 Fixing doors that are too tight at the TOP lock side
03:55 Fixing doors that are too tight at the BOTTOM lock side
04:11 Fixing doors shifted too far toward hinge side
04:37 Fixing doors shifted too far toward lock side