Skip links

Frequently Asked Questions

A4 Paper FAQ - Everything You Ever Wanted to Know About A4 Paper

At Mondi Rotatrim, we live and breathe A4 office paper.
We’ve been producing it locally in Merebank, Durban since 1967 and manage over
254,000 hectares of plantation forest sustainably. From forestry facts to print performance, here’s everything you need to know about A4 paper — and why choosing Mondi Rotatrim makes a difference.

What makes Mondi Rotatrim different?

Locally Produced

Made in Durban using FSC®-certified eucalyptus fibre, supporting South African jobs and small growers.

Certified & Sustainable

Mondi Rotatrim is now Cradle to Cradle Certified®, meeting top global standards for:

  • Material health
  • Circularity
  • Water and energy use
  • Social fairness

Performance You Can Count On:

  • Rated 160 CIE for superior whiteness
  • No curling or show-through on double-sided prints
  • Smooth surface gentle on printers

Is paper sustainable?

Yes. Paper is one of the most renewable resources on Earth. Paper fibres can be recycled up to 12 times before they become too short for reuse.

Mondi’s forestry practices focus on long-term productivity, biodiversity conservation, and community development. Our mills have reduced freshwater use by 8% by increasing recycling and closing process loops.

What size is A4 paper?

A4 paper measures 210 x 297 mm (8.27 x 11.69 inches). It’s the international ISO 216 standard for office and personal documents, widely used in South Africa and globally.

Why is A4 paper based on a √2 ratio?

The A-series paper sizes (A0 to A10) are all based on a √2 aspect ratio, which allows documents to scale up or down without changing layout proportions. For example:

  • Fold A4 in half = A5
  • Two A4 sheets side by side = A3 This unique system helps preserve formatting across different sizes.

What is a ream of paper?

A standard ream contains 500 sheets of A4 paper.

  • 1 ream = ~2.5 kg
  • 1 box = 5 reams (12.5 kg total)
  • 1 ton = 80 boxes = 400 reams

How high is a stack of A4 paper?

  • 313 sheets stacked = height of the Statue of Liberty
  • 192 sheets stacked = height of the Leaning Tower of Pisa

How many sheets can one tree produce?

On average, one pine tree can produce around 80,000 sheets of A4 paper. That’s 160 reams per tree.

Paper Facts

  • When an A4 paper is cut in half, the resulting sheets (A5) have the same proportions – ratio of height/width. That way printing can be scaled up or down for different size pages without changing the layout or appearance of the page.
  • The standard-sized paper sheet in the western world (A4) is based on a factor of √2. The reason for this is so if you fold it lengthwise every time, it maintains the same length-to-width ratio, large or small. This means that folding an A4 piece of paper in half gives you A5, folding an A5 in half gives you A6 and so on. Conversely, if you put two pieces of A4 together, you get A3.
  • If you could theoretically fold an A4 piece of paper 103 times, the thickness would be larger than the observable universe, but in terms of surface area would be smaller than an atom. The current world record for folding a sheet of paper in half is 12 times – but it wasn’t an A4 sheet, so we’ll leave you to try to get beyond 7 folds.

Packaging it all up

  • A paper ream is a pack of paper that usually contains 500 sheets per package.
  • A4 office paper boxes come in 5 reams. A box weighs an average of 12½ kg. Divide that by 5 and you get 2½ kg per ream.
  • How many boxes of paper in a ton? Most bulk paper orders have a minimum buying requirement of 1 ton. This is usually made up of 80 boxes transported in pallets. 1 pallet = 80 boxes of paper = 1 ton.
  • If you stand 313 A4 sheets in portrait mode, they’ll stack as high as the Statue of Liberty. Stacking 192 sheets in portrait mode would be as high as the Leaning Tower of Pisa.
  • On average one pine tree can make 80 000 sheets of paper.
  • Paper is one of the few truly renewable resources. Paper fibres can be recycled up to 12 times before they get too short for paper-making.
This website uses cookies to improve your web experience.
This site is registered on portal.liquid-themes.com as a development site. Switch to production mode to remove this warning.