Printing Paper and Cardstock in South Africa: GSM, Inkjet vs Laser, Finishes and How to Choose

The best paper for a job is not the heaviest or the dearest. It is the paper that suits your printer, feeds reliably, holds ink or toner correctly and gives the finished piece the right balance of colour, stiffness and durability. Valenna stocks everyday A4 and A3 copy paper, printable cardstock, photo and flyer paper, sticker sheets, printable vinyl, laminating film, chipboard and triplex board, all used in our own stationery work.

This guide helps you choose by project and by printer, and links to detailed answers on every topic.

⚡ Quick answer: which paper do you need?

Weight	Typical use	Check before buying
80gsm copy paper	Office documents, worksheets, invoices, everyday printing	A4 or A3, brand, ream quantity
100 to 130gsm	Presentations, inserts, menus, lightweight flyers	Inkjet or laser compatibility, coated sides, finish
160gsm cardstock	Certificates, greeting cards, craft projects, light covers	Your printer's supported media weight
250 to 300gsm cardstock	Invitations, menus, postcards, covers	Paper-path bends, scoring before folding
350gsm cardstock	Business cards, firm invitations, notebook covers	Whether your printer and tray accept heavy board
620 to 1000gsm board	Book covers, mounts, displays, packaging structures	Usually cut, mounted or bound, not fed through a home printer

ℹ️ Rule of thumb: start with the project, confirm the printer, and only then choose the GSM and finish.

⚖️ What does GSM mean?

GSM is grams per square metre: how much one square metre of the material weighs. It does not directly tell you thickness, stiffness, opacity, brightness or print quality. Two sheets with the same GSM can feel different because their fibres, coatings and density differ. Use GSM to compare papers in the same family, and use micron or caliper thickness when physical thickness decides whether a board fits a machine or binding element. See understanding paper types, cardstock weights and board materials, the GSM comparison chart and 250gsm vs 300gsm cardstock.

🖨️ Will my printer take thick cardstock?

Check by exact model, never by the words "inkjet", "laser" or "cardstock". The safest source is the printer manual or the manufacturer's media specification.

Find the maximum paper weight for your exact model, not a similar one in the same series.
Check the limit for the tray you will use. The cassette, multipurpose tray and rear feed can differ.
Choose the right heavy-paper media setting, which adjusts feed speed, ink use or fuser behaviour.
Use the straightest paper path available, such as a rear feed, because tight turns cause jams and marks.
Print one test sheet before loading the pack and check feeding, colour, drying, toner adhesion, curl and duplex alignment.

💡 Tip: too thick for your printer? Many 350gsm sheets are meant for firm cards and covers that are cut and finished by machine. Ask us if a thinner sheet could work for your project. See will this paper or cardstock work in my printer?

💧 Inkjet or laser paper?

Paper	How it works	Rule
Inkjet paper	A receptive coating absorbs liquid ink and controls drying	Use paper rated for inkjet when it must absorb liquid ink
Laser paper	Must tolerate the heat and pressure of the toner fuser	Use laser-rated paper for toner adhesion
Multipurpose 80gsm	Works with both when the manufacturer lists both	Fine for everyday documents

⚠️ Warning: never put inkjet-only glossy paper in a laser printer. The coating can soften under heat, bond poorly or contaminate the machine. Laser-coated paper in an inkjet may bead, look dull or dry slowly. See inkjet vs laser paper.

✨ Matte, glossy or uncoated?

Matte: low glare, easier handwriting. Best for certificates, invitations, forms, covers and text-led pieces.
Glossy: higher shine and vivid images. Best for photos, promotional cards and image-led flyers.
Uncoated: natural feel and a writing-friendly surface. Best for letterheads, journals and crafts.

Choose the finish for the finished item, not because one looks more premium. See matte vs glossy paper.

📚 Paper for specific jobs

📄 Everyday copy paper: 80gsm in A4 or A3. We stock familiar South African brands including Rotatrim, Typek, Double A, Quality Purple and Navigator. See copy paper brands compared, A4 vs A3 and best weight for office documents.
💌 Cards and invitations: best cardstock for invitations, greeting cards and business cards.
📣 Flyers and menus: best paper for flyers, brochures and menus.
🏷️ Stickers, vinyl and labels: sticker paper vs printable vinyl.
📷 Photo paper: 120gsm vs 230gsm photo paper.
🛡️ Lamination: self-laminating vs thermal lamination.
📘 Board for covers and binding: grey chipboard vs white triplex board and our binding guide.

🛠️ Fixing common printing problems

Curling, jams, cracking on the fold, smudging and flaking toner all have simple causes. Read how to prevent paper curling and our other fixes, and store paper flat, dry and away from sun: how to store paper and cardstock.

🛒 Buying and special requests

Browse our paper and cardstock range. Need a size, weight, colour or finish that is not listed, or a bulk quote? See requesting an unlisted paper or bulk paper pricing.

❓ Frequently asked questions

Is thicker paper always better?

No. The right weight depends on the printer and the project.

Can I use glossy photo paper in a laser printer?

Only if it is rated for laser. Inkjet-only glossy paper should never go into a laser printer.

Where do I find my printer's maximum paper weight?

In the printer manual or the manufacturer's media specification for your exact model and tray.

👉 Next steps and help

Browse paper and cardstock
Questions before you buy? Use the contact form, email support@valenna.co.za or WhatsApp 061 500 4106. Include your printer model, the paper you are considering and the project so we can answer in one reply.

Printing Paper & Cardstock South Africa | GSM, Inkjet vs Laser Guide | Valenna