file holders

File holders are made from a variety of materials, commonly including polyester, plastics, wood composite, steel, polyurethane, and paper.

Many file holders accommodate standard letter-size paper (8.5" × 11"); several products also support legal-size documents, so both letter and legal formats are commonly available.

Common security and closure features include combination/password locks and double zippers on fireproof boxes; latches that accept a small padlock or zip tie on plastic boxes; snap or button closures on document sleeves; and thumb-turn closures on expandable files.

Portable file holders often include sturdy or integrated handles, contoured grip areas, and designs labeled as portable or easy to carry, making them suitable for moving files between rooms or locations.