Place 2 white blocks side by side for the fridge body
Place 1 iron block on top of each white block
Add 2 iron trapdoors on the front as doors
Place 1 button or lever on the side as a handle
Put a slab or carpet on top for the freezer section
Add a dispenser or chest behind the front if you want storage
Use quartz, iron, or white concrete for a modern look
Place the fridge against a wall for a built-in appearance