The bottomline on taking out and putting in refrigerator and freezer shelving on Shabbos.
הכנה ליום אחר (Preparations for a Weekday): Washing Dishes on Shabbos for Sunday. Releasing a Halachic Vow (הַתָּרַת נְדָרִים);
putting plastic or rubber shoes on the bottom of a chair or a table and working with the leg of a chair, leg of...
How to Work with Watches on Shabbos. Part #2;