Square containers appear in a range of materials, commonly steel/metal, aluminum/foil, tin, and various plastics.

Foil pans are often sold as disposable but can also be reused and may be recyclable—check local recycling rules. Some cake pans are noted as recyclable, while decorative or collectible tins are typically presented as reusable rather than disposable.

Capacities vary widely across listings. Example values reported include .01 cubic‑in, 117.41 cubic‑in, 11.7 cups, and 4.6 quarts—check the specific product listing for the exact volume.

Square tins are used for tea, craft or sewing supplies, jewelry, keepsakes, gifts, and seasonal treats. Foil pans are used for baking, transporting, and serving cakes, brownies, casseroles and other prepared foods. Clear pantry containers are used to store staples like pasta, grains, and snacks.