Show the proposed storage layout
Include overhead racks, tall cabinets and items that extend beyond a shelf edge. A closed-door photograph can conceal the path occupied by raised sections and the opener rail. The installer needs to evaluate the operating clearances, while the storage installer must establish suitable independent support.
Keep door hardware free of added loads
DASMA warns against hanging storage from door components and track. Those parts are designed for the door system, not as building storage supports. Do not move brackets or add weight to make a rack fit.
Preserve future service access
A layout may appear to clear movement yet block access to a label, control or service point. Ask how routine inspection and component replacement would be performed. Keep the agreed arrangement in the project notes so later storage changes do not undo the clearances considered during installation.
Your questions
Should ceiling racks be installed before the door layout is checked?
Confirm the door travel and service clearances first. A rack with its own structural support can still obstruct the moving sections or prevent access to the opener and its controls.
Does a wall-mounted opener free every part of the ceiling?
No. The door and track still move through overhead space, and compatibility must be assessed.