Measure for movement, too.

1. Find the narrowest point

Measure inside the cabinet, then measure the clear opening with the door fully open. A frame or hinge may make the opening narrower than the interior. A bin that sits inside can still be awkward to remove; a sliding organizer must pass the obstruction along its travel path.

2. Draw the usable footprint

Measure depth from the back wall to the nearest obstruction when the door is closed. Mark hinges, shelf lips and door-mounted storage on paper. Lay a paper outline of the organizer on the shelf and check all four corners. For a turntable, use a circle and try the actual bottles inside it.

3. Add the contents

Check both stored height and removal height. A jar needs enough space to lift above a rim, and a tall bottle needs hand room around its cap. Stacked bins require the assembled stack height rather than twice an assumed single-bin height.

4. Check the way it moves

A pull-out needs cabinet space for its mounting hardware and open space beyond the cabinet face. Check nearby doors, handles and appliances along the travel path. Follow the exact installation instructions; a removable bin and a screwed-down slide have different requirements.

5. Buy one zone first

Try the smallest useful purchase, place your real items in it, and check whether the door closes and everything can be removed. Keep the packaging until you are satisfied with the arrangement.