Expanding Pockets & Folders

Expandable accordion file folders are versatile tools for organizing and storing documents of varying sizes. These folders come in different sizes of expansion, allowing you to customize the capacity based on your specific needs. Here are some of the different sizes of expansion for expandable accordion file folders 1-inch expansion folders provide a moderate amount of storage space. They are suitable for organizing a moderate volume of documents, such as receipts, bills, or personal papers. With the expandable design, these folders can accommodate approximately 150 to 200 sheets of paper, depending on the thickness of the documents. They are compact and portable, making them ideal portable filing solutions for day-to-day document management.

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Choosing the right file folders

FilingSupplies.com carries end-tab folders for open-shelf systems, top-tab folders for drawer filing, and heavy-duty classification folders with dividers and fasteners for multi-section records. Pick letter or legal size, then choose material (11-pt, 14-pt, or 18-pt manila), optional reinforced tabs, color-coding, and expansion capacity to match your volume.

Folder FAQs

End-tab vs. top-tab — what’s the difference?
End-tab folders show the tab on the long side and are used on open-shelf systems; top-tab folders show the tab along the top edge and are designed for drawer filing.
When should I choose classification folders?
Choose classification folders when you need built-in dividers and 2-prong fasteners to separate sections within one file—ideal for medical charts, legal matters, and case files.
Letter or legal size — how do I pick?
Letter (8.5" × 11") fits standard documents; legal (8.5" × 14") fits longer forms. Match the folder to both your documents and storage equipment.
What tab and material options are available?
Tabs include full-cut, 1/2-cut, or 1/3-cut (assorted positions). Materials range from 11-pt to 18-pt manila, with optional reinforced (2-ply) tabs for added durability.
Can I add fasteners, pockets, or expansion?
Yes—add 2" bonded fasteners (various positions), pockets/jackets, and expansion gussets (e.g., 3/4" to 2"+). Check each product’s options for capacity and placement.
Do you offer volume pricing or custom printing?
We offer bulk price breaks and custom printing (logos, lines, colors). Call (800) 810-3453 for a quote.