The Ultimate Wholesale Guide to Notebook Sizes
Overview
“Notebook size” depends on the standard you use. Globally, the ISO A/B series dominates (A4, A5, B5); in the U.S., common sizes are Letter (8.5″×11″), Composition (7.5″×9.75″), and Junior Legal (5″×8″).
1) The two sizing systems you’ll see
ISO 216 (A/B series, metric world)
The most used sheet is A4 = 210 × 297 mm (≈ 8.27″ × 11.7″).
Popular notebook cuts: A5 = 148 × 210 mm, A6 = 105 × 148 mm, and B5 = 176 × 250 mm (a touch wider/taller than A5, favored in East Asia).
U.S. sizes (inch-based)
Letter = 8.5″ × 11″ (typical spiral & bound pads).
Other notebook-friendly formats you’ll meet: Junior Legal = 5″ × 8″ (compact tear-off pads) and Composition = 7.5″ × 9.75″ (stitched, marble cover).
2) Quick size cheat-sheet (most-ordered at Shiny You)
A4 — 210 × 297 mm (≈ 8.27″ × 11.7″) → full-page class/office notes.
B5 — 176 × 250 mm (≈ 6.9″ × 9.8″) → roomy but bag-friendly.
A5 — 148 × 210 mm (≈ 5.8″ × 8.3″) → everyday carry journaling.
A6 — 105 × 148 mm (≈ 4.1″ × 5.8″) → pocket lists & travel notes.
Letter — 8.5″ × 11″ → U.S. school & office standard.
Composition — 7.5″ × 9.75″ → stitched school notebooks.
Junior Legal — 5″ × 8″ → compact meeting pads.
3) Which size fits your use?
Lecture-heavy courses / meeting packs → A4 or Letter: maximum writing area and easy photocopying.
Daily carry planners / bullet journals → A5 or B5: easy to tote, enough room for layouts. (B5 gives you ~15–20% more space than A5.)
Field work / travel logs → A6: one-handed notes, fits jacket pockets.
U.S. classroom classic → Composition: durable sewn binding; pages won’t snag.
Quick action items → Junior Legal: tear-off convenience.
4) Size vs. format: a few buying notes from a wholesaler
Sheet size vs. cover size: product pages usually list the inner paper size; covers can extend 3–5 mm for protection.
Ruling doesn’t change size: wide/college/narrow rule refers to line spacing, not page dimensions.
Paper weight (GSM): 70–80 gsm is cost-effective for school; 90–100 gsm reduces ghosting for fountain pens/markers.
Binding & perforation: wire-bound is ideal for lay-flat notes; stitched (e.g., Composition) is sturdy; top-perforated pads favor quick tear-off.
Regional mixes: For international teams, we often ship A5/B5 alongside Letter to match local preferences.
5) FAQ
Q: Is B5 bigger than A5?
A: Yes. B5 = 176 × 250 mm vs A5 = 148 × 210 mm, so B5 is both wider and taller.
Q: Why does my A4 notebook feel close to U.S. Letter?
A: They’re similar; A4 is slightly taller and narrower (210 × 297 mm vs 8.5″ × 11″).
Q: What about “Executive” size?
A: In the U.S., Executive paper exists, but everyday notebooks more commonly use Letter, Junior Legal, and Composition. If you need Executive for a matched set, tell us and we’ll source or customize.
6) Sizing table
| Common Name | Metric (mm) | Inches | Notes |
|---|---|---|---|
| A4 | 210 × 297 | 8.27 × 11.7 | Global office/classic. |
| B5 | 176 × 250 | 6.9 × 9.8 | Popular in East Asia & journaling. |
| A5 | 148 × 210 | 5.8 × 8.3 | Portable daily carry. |
| A6 | 105 × 148 | 4.1 × 5.8 | Pocket/travel. |
| Letter | — | 8.5 × 11 | U.S. standard. |
| Composition | — | 7.5 × 9.75 | Sewn, classroom classic. |
| Junior Legal | — | 5 × 8 | Compact pad. |
7) Ordering & customization (Shiny You Stationery)
As a China-based wholesale supplier, we manufacture and consolidate A4/A5/B5/A6, Letter, Composition, and Junior Legal notebooks across spiral, stitched, hard/soft cover, and PU leather lines. We support:
Private label / OEM (custom sizes, covers, page rulings, GSM, elastic bands, pen loops).
Mixed cartons to trial sizes across markets.
Retail-ready packaging and barcode printing.
Tell us your target markets and use cases (school sets, office programs, bullet-journal kits), and we’ll recommend sizes, paper weights, and bindings to hit your price points.
Still deciding?
Share your preferred ruling, cover style, and budget, and we’ll put together a shortlist (with samples) of A5/B5 or Letter/Composition options that match your brand.