Paper Weights Explained: The Complete GSM Guide for SA Businesses
Paper Weights Explained: The Complete GSM Guide for SA Businesses
Quick Answer GSM stands for grams per square metre — it measures how heavy (and therefore how thick) a piece of paper is. The higher the number, the thicker the paper. Standard office printer paper is 80gsm. A premium business card is 350–400gsm. For flyers, 130gsm is the sweet spot. For menus, 250gsm with lamination. This guide tells you exactly which weight to use for every common print product. |
You're on a printing website, ready to order your flyers. You've chosen the size, the finish, the quantity. Then you hit the paper weight selector: 90gsm, 115gsm, 130gsm, 170gsm, 250gsm.
You stare at the screen. You pick 130gsm because it's in the middle. You hope for the best.
This guide exists so that never happens again. After reading it, you'll know exactly which weight to choose for every product — and why. It's genuinely not complicated once someone explains it in plain language.
What Does GSM Actually Mean?
GSM = grams per square metre. It measures the weight of one square metre of that paper. That's it. Higher number = heavier paper = thicker paper. Lower number = lighter, thinner paper.
To calibrate your sense of the scale: the standard office printer paper in most South African offices is 80gsm. A newspaper page is around 45–55gsm. A glossy magazine page is 90–115gsm. A premium business card is 350–400gsm. The range used in commercial printing runs from about 90gsm to 400gsm+, with very different results at each end of the scale.
Flyers: Which GSM Should You Choose?
Flyers are the print product where GSM choice matters most visibly, because people are holding them and making an instant judgement. Here's how the common weights play out in practice:
115gsm | Standard for high-volume litho print runs where cost efficiency matters more than premium feel. Used by large retailers and mass-distribution campaigns. |
150gsm ✓ Recommended | The sweet spot for most SA small business flyers. Professional feel, doesn't feel fragile, prints colour beautifully, cost-effective. This is what Webprinter recommends as the default for promotional flyers. |
170gsm | Noticeably more substantial — this is a 'premium' flyer. Excellent for client-facing businesses positioning at the higher end of their market: estate agents, clinics, boutique retailers, upscale restaurants. Costs slightly more but the feel justifies it. |
💡 The real-world test Pick up a glossy magazine and feel the cover — that's approximately 250gsm. Feel the inner pages — that's around 90–115gsm. Most restaurant menus feel somewhere between a magazine cover and a playing card — that's the 250–300gsm range with lamination. | |
Business Cards: Never Go Below 350gsm
This is the one area where there's no debate. A business card below 350gsm feels cheap. That feeling transfers — in the recipient's mind — to the business behind the card. Research consistently shows that the physical quality of a business card influences perceptions of the company's professionalism.
350gsm | The baseline for a professional card. Solid, doesn't bend under pressure, takes lamination beautifully. |
400gsm | The premium choice. Noticeably more substantial. If you're in a client-facing profession where that first impression matters most — law, finance, architecture, medical — go here. |
Menus and Hospitality: Weight + Lamination Work Together
For any printed material that gets handled repeatedly — restaurant menus, café price lists, guesthouse information folders — GSM and lamination need to be considered together. A high-GSM unlaminated menu won't survive a week of dinner service. The combination of the right weight AND a protective laminate is what makes a menu last.
170gsm + gloss laminate | Durable, cost-effective, vibrant. Best for fast-casual dining and high table-turnover environments. |
250gsm + gloss laminate | The most popular restaurant menu combination. Substantial feel, vivid colour, wipe-clean surface. |
250gsm + matt laminate | More sophisticated, less glare under restaurant lighting. Popular in wine bars and fine-casual environments. |
300gsm + encapsulation | The premium tier. Feels exceptional in the hand. Used in fine dining and upscale hospitality. |
Booklets, Brochures, and Programmes
For multi-page items, the inner pages and the cover are usually different weights — inner pages lighter (for easy turning and lower cost), cover heavier (for durability and visual impact).
Inner pages | 115, 130, 150gsm matt or gloss — standard and cost-effective for most corporate booklets and event programmes. |
Cover (saddle-stitch) | 150, 250gsm–with gloss or matt laminate for a defined, durable cover on an A5 or A4 booklet. |
Brochures (folded) | 115, 130, 150, 170gsm matt or gloss for a bi-fold or tri-fold brochure — needs to fold cleanly without cracking. |
Letterheads and Corporate Stationery
Here's where many business owners get the weight wrong — by going too heavy. Letterheads should be printed on 80gsm uncoated stock. Why? Because a letterhead goes through your own laser printer to add the letter content. Heavy coated paper doesn't always feed through a laser printer correctly, and the coating can affect print adhesion. 80gsm uncoated is the correct professional specification.
Gloss vs Matt vs Uncoated — the Finish Question
Weight tells you how thick the paper is. The coating tells you how it looks and feels:
Gloss coated: Colours are vivid and saturated. High contrast. Shows fingerprints. Best for image-heavy, colour-led designs.
Matt coated: Subdued, sophisticated. No glare. Easier to read in bright light. Best for text-heavy designs and professional contexts.
Uncoated: Absorbs ink, softer result. Used for letterheads, notepads, and materials that will be written on or fed through a laser printer.
Not sure which weight to choose? Get instant quotes at shop.webprinter.co.za — select your product and see pricing across paper weight options. Free delivery nationwide. |
Frequently Asked Questions
What is the most popular paper weight for flyers in South Africa?
115gsm gloss is the most ordered paper weight for promotional flyers in South Africa. It strikes the right balance between professional feel and cost-effectiveness. 150gsm is the step up for businesses that want their flyers to feel noticeably more premium.
Can I feel the difference between paper weights?
Yes — very clearly at the extremes. The difference between 90gsm and 170gsm is immediately obvious. The difference between 350gsm and 400gsm for business cards is more subtle but still noticeable. If you've ever held a business card and thought 'this feels impressive' — it was almost certainly 400gsm laminate.
Does heavier paper always mean better quality?
Not always. Letterheads should be 80gsm uncoated — a heavier coated stock is wrong for letterheads because it doesn't feed through laser printers correctly. Match the weight to the product's purpose and usage context, rather than always defaulting to heavier.
Can Webprinter advise on which paper weight is right for my job?
Yes. Use the live quote tool at shop.webprinter.co.za to see pricing across different weight options or contact us directly for advice on the right specification for your specific product and use case.