A 9" x 11.5" laminating pouch is made for standard letter-size documents with enough border for a secure seal. It works well for signs, schedules, certificates, classroom sheets, menus, reference pages, photos, and office documents. The extra space around an 8.5" x 11" sheet helps the pouch seal properly along the edges. Do not trim the pouch too close to the paper after laminating, because the sealed edge helps protect the document from moisture and handling. If the document has tabs, thick inserts, or unusual paper, test one piece first. The pouch should fit the document and still leave a clean sealed border.