
A4 Paper GSM Guide: What GSM Means and Which One to Buy
GSM ("grams per square meter") is the single biggest factor in how A4 paper feels, performs, and prices out — and it's the spec most buyers guess at instead of actually understanding. Here's what each common GSM tier means in practice, and how to pick the right one without overpaying for weight you don't need.
GSM Comparison at a Glance
| GSM | Feel | Best For | Show-through (double-sided) |
| 70 GSM | Thin, most economical | High-volume internal/draft printing | Noticeable |
| 75 GSM | Standard office weight | Everyday general office use | Minimal-Moderate |
| 80 GSM | Thicker, more opaque | Double-sided, client-facing docs | Minimal |
| 90-100+ GSM | Heavy, presentation-grade | Certificates, covers, presentations | None |
What Does GSM Actually Measure?
GSM stands for grams per square meter — literally how much a single square meter of the paper weighs. Higher GSM means a thicker, heavier, more opaque sheet; lower GSM means thinner and lighter. It's a direct, physical measurement, not a marketing term, so it's one of the more reliable specs to compare across brands.
70 GSM: Budget and High-Volume
The thinnest common option, 70GSM is popular for internal drafts, high-volume photocopying, and situations where cost per ream matters more than feel or opacity. Some show-through is normal on double-sided prints at this weight.
Best for: back-office printing, drafts, high-volume copying where budget is the priority.
75 GSM: The Everyday Standard
75GSM is the most common "default" copy paper weight worldwide and covers the vast majority of everyday office printing needs — a reasonable balance of cost, feel, and performance for single-sided and moderate double-sided use.
Best for: general office printing, most day-to-day business documents.
80 GSM: Better for Double-Sided and Client-Facing Work
80GSM is noticeably thicker and more opaque than 75GSM, which significantly reduces show-through on double-sided prints and gives documents a slightly more premium feel — often worth the modest price increase for proposals, reports, or anything a client will handle directly.
Best for: double-sided printing, client-facing documents, offices that want a slightly more premium standard.
90-100+ GSM: Presentation and Specialty Use
Above 90GSM, paper starts moving into presentation, certificate, and cover-stock territory rather than everyday copy paper — heavier feel, no show-through at all, but priced and used more like a specialty product than daily office stock.
Best for: certificates, presentation covers, formal documents.
How to Pick the Right GSM
- Not sure? Start at 75GSM — it covers the large majority of office needs without overpaying for weight you don't need.
- Print double-sided often, or send documents to clients? Move up to 80GSM.
- High-volume internal printing where cost per ream is the main driver? 70GSM will stretch your budget furthest.
- Need something for certificates or presentation covers? Look at 90GSM+ specialty stock instead of standard copy paper.
Frequently Asked Questions
What GSM is best for everyday printing?
Is 80 GSM paper worth the extra cost over 75 GSM?
What GSM is regular printer paper?
Does higher GSM mean better quality?
More A4 Paper Resources
Shop by brand
RELATED ARTICLES
Our A4 Copy paper wholeslae Certificates

ISO Certificate

FSC Certificate

PEFC Certificate
Contacts uS
- Royal copy papers, 109 CCT BLDG., 9TH SURAWONGSE RD koh Samui 2 10500, Thailand, Thailand, Thailand
- +66 65 235 9288
- Royalcopypapers@gmail.com
Business Hours
Mon–Sat: 10:00 AM – 5:00 PM
Sun: 10:00 AM – 3:00 PM






















