A4 Copy Paper Buying Guide: Everything to Know Before You Buy
Buying A4 copy paper sounds simple until you're staring at ten listings with different GSM numbers, brightness ratings, and prices per ream — and no idea which one actually matters for what you're printing.
This guide walks through exactly what to check before you buy, whether you need a single ream for a home printer or a pallet for an office of 200 people.
If you already know your specs and just want pricing, jump to our wholesale pricing page
What Is A4 Copy Paper?
A4 is the international standard paper size (210mm × 297mm), used for everything from office printing and copying to school work and general business documents. It's the default size across Argentina, Europe, and most of the world outside North America.
"Copy paper" simply means general-purpose paper designed for copiers, laser printers, and inkjet printers alike — as opposed to specialty paper like photo paper or cardstock.
1. GSM (Paper Weight) — The First Thing to Check
GSM stands for "grams per square meter" and it's the single biggest factor in how paper feels and performs:
- 70 GSM — thinner, most economical, fine for high-volume internal printing and drafts.
- 75 GSM — the most common "standard" copy paper weight; a good default for everyday office use.
- 80 GSM — noticeably thicker and more opaque, better for double-sided printing or client-facing documents.
- 90–100+ GSM — used for presentations, certificates, or covers.
2. Brightness and Whiteness
Brightness (measured on the ISO scale, typically 90–104) affects how crisp text and colors look, especially for anything printed in color or scanned afterward.
- 90–92 ISO — standard, fine for internal documents
- 96–98 ISO — noticeably brighter, better contrast
- 100+ ISO — premium tier for proposals, marketing materials, presentations
Higher brightness generally costs more, so match it to what you actually print rather than defaulting to the highest number.
3. Inkjet vs Laser Compatibility
Most A4 copy paper works fine in both inkjet and laser printers, but if you're printing high volumes or a lot of photo/graphic work, the paper's coating and moisture content start to matter.
4. Ream Size, Box Count, and Bulk Quantities
Standard packaging:
- 1 ream = 500 sheets
- 1 box = typically 5 reams (2,500 sheets)
- 1 pallet = varies by supplier, commonly 40–50 boxes
Buying tip: calculate your monthly usage first, then buy 2–3 months' supply at a time.
5. Brand Comparison
Not all A4 paper is created equal, even at the same GSM and brightness rating — sourcing, pulp quality, and finishing all affect real-world performance.
6. Price Factors to Understand Before You Buy
- GSM and brightness (higher = more expensive)
- Order volume (bulk = lower per-sheet cost)
- Import/logistics costs
- Certifications (FSC-certified paper often carries a premium)
7. Quick Buying Checklist
- GSM matches your use case
- Brightness fits your printing needs
- Quantity matches usage — check bulk pricing breaks
- Supplier can confirm delivery timeframe
- MOQ works for your budget/storage
- Certifications, if relevant
FAQ
What GSM is best for everyday office printing?
Is thicker (higher GSM) paper always better?
How many sheets are in a ream, box, and pallet of A4 paper?
Where can I buy A4 copy paper in bulk?