Binder Tab Dividers
Folders & Filing · 7 specs
Direct Answer
Ring Binder Index Tab Dividers are standardized multi-bank index sheets punched with universal hole patterns to partition 3-ring and lever arch binders into organized sections. Manufactured in standard 5-Tab and 8-Tab single banks, 12-Tab (Monthly Jan–Dec), 31-Tab (Daily 1–31), and 26-Tab (Alphabetical A–Z) configurations with Mylar-laminated tabs.
Source: Avery Products Standard Specifications / Commercial Indexing Standards · Last reviewed Aug 28, 2026
Specs
| 5-Tab Bank Configuration | 5 staggered tabs spanning the 11-inch vertical edge (tab width: approx. 2.0 in / 51 mm) |
| 8-Tab Bank Configuration | 8 staggered tabs spanning the vertical edge (tab width: approx. 1.25 in / 32 mm) |
| Monthly Index (12-Tab) | 12 tabs labeled Jan through Dec in two stacked banks of 6 |
| Daily Index (31-Tab) | 31 numbered tabs in multiple stacked banks for daily follow-up ticketing |
| Alphabetical Index (26-Tab) | 26 tabs (A through Z) for customer and client filing |
| Reinforced Binding Edge | Clear Mylar / polyester laminate film heat-bonded over hole punches to prevent tearing |
| Sheet Extension Width | Sheet body: 8.5 × 11.0 in | Tab extension: +0.50 in (total width: 9.0 in / 229 mm) |
Standard Tab Overhang Width
Divider tabs extend exactly 0.50 inches (12.7 mm) beyond the standard 8.5-inch width of US Letter paper (9.0 inches overall). When placed inside standard 3-ring binders, the tabs project past the document sheets for immediate visual access without protruding beyond the protective binder cover edges.