Listings show common external ranges: heights roughly 9.33–14 inches, widths about 3.46–14 inches, and depths up to around 18.5 inches. Some larger or collapsible models list dimensions near 17 inches. Exact dimensions vary by style and intended use.
Common materials include polyester fabric, plastic, steel, polyurethane, acrylic, paper/cardboard, silicone-coated fiberglass (for fire-resistant exteriors), and internal PP (polypropylene) supports.
Many filing boxes are sized for letter documents (8.5 × 11 inches); several listings note compatibility with both letter and legal hanging files.
Many filing boxes are designed for portability: fabric or fireproof organizers can be collapsible with sturdy handles; plastic boxes offer comfort-grip or contoured handles; mesh crates list integrated handles; and smaller holders or wall pockets are lightweight for easy access.
Built-in organizers can include passport-sized mesh bags, multiple card slots, USB/data pockets, mesh compartments, outer pockets, dedicated file pockets, in-lid compartments, and supplied label papers for sorting.
