Common overall dimensions are roughly 8.5–11.4 inches in height, about 12–13.25 inches in width, and depths typically near 3–3.75 inches.
Most hanging file pockets and folders are designed to hold letter-size documents (standard 8.5" × 11").
Capacity varies widely by style and depth. Some pockets list capacities as low as about 12 sheets, others 36–100 sheets for shallower styles, and deeper wall pockets may hold the equivalent of roughly 400 pages.
Extra features often include label tabs and inserts for organizing, hanging hooks or rods for suspension, snap-tight lids or molded handles on portable boxes, and stackable designs for saving space.
Assembly varies by product: some wall pockets require no assembly, while others note adult assembly is needed and may include or exclude the necessary tools depending on the item.