Folder Sizes: Standard Pocket & File Folder Dimensions Guide
Blank 9 x 12 Presentation Folder w/Front Cover Center Card Slits-White Gloss | Folders.com
Standard Folding Solutions - Desktop and Floor Model Folders
Standard Presentation Folders | DCL Media & Print
Letter Size File Folders | Custom 9x12 (Standard) File Folders
Staples Hanging File Folder, 5-Tab, Letter Size, Standard Green, 25/Box (TR116764) | Staples
Amazon.com : 50 Fastener File Folders - 1/3 Cut Reinforced Tab - Durable 2 Prongs Designed to Organize Standard Medical Files, Law Client Files, Office Reports - Letter Size, 50 Pack (Blue) : Office Products
Pen+Gear Hanging File Folder, Standard Green, Letter 12 Per Pack - Walmart.com