What are the dimensions of a universal fridge shelf and how can it be adjusted to fit different refrigerator models?

A universal fridge shelf typically has dimensions of around 22 inches in length and 16 inches in width. It can be adjusted to fit different refrigerator models by utilizing adjustable brackets or sliders that can be moved to accommodate varying widths and depths of refrigerator compartments. This allows for a customizable fit in a wide range of refrigerator sizes and configurations.