Skip to content

A4, A5, and A6 are common paper sizes in the international standard format. The A4 size is 210mm by 297mm, A5 measures 148mm by 210mm, and A6 is 105mm by 148mm.

Uncover the dimensions of A4, A5, A7, and DL cards in our comprehensive guide. Delve into critical card measurements and gain valuable insights.

Understand the dimensions of A4, A5, A7, and DL cards in our comprehensive guide to card sizes....
Understand the dimensions of A4, A5, A7, and DL cards in our comprehensive guide to card sizes. Uncover the vital measurements for each type of card with our assistance.

A4, A5, and A6 are common paper sizes in the international standard format. The A4 size is 210mm by 297mm, A5 measures 148mm by 210mm, and A6 is 105mm by 148mm.

In the vast array of card sizes available, confusion is common. To help simplify matters, this comprehensive guide explains UK card sizes and codes.

Whether you are purchasing card blanks for personal projects or creating your own, a basic understanding of standard UK card sizes is essential to avoid mix-ups with US sizing. This guide specifically focuses on UK paper and card sizes.

Decoding Card Size Codes

Like paper, standard sizes of card blanks are available for purchase. Each size is assigned a code corresponding to the card's dimensions.

Knowing what size an A6 card is, for example, is crucial for understanding the code system. An A6 card measures 105 x 148mm, and these measurements refer to the folded card or the front face. To clarify, an A5 card when unfolded becomes an A4 sheet of paper. Folding it in half results in an A6 card.

The A paper sizes in the UK are based on the ISO 216 international standard paper sizes. All A paper sizes have a height-to-width ratio of the square root of two to one. While this detail isn't crucial to remember, it ensures that all A-named papers will have the same aspect ratio. US paper sizes differ from this system, so sizes will not consistently match up between the two naming systems.

Card Weights

Crafting adherence to standard sizes simplifies envelope purchasing, making your cards cheaper to post in certain countries. By knowing your card weights, you can ensure the quality and thickness of the card material in your projects.

Any paper with a weight of 150gsm (grams per square meter) or higher can be considered high-quality and suitable for card-making.

Creating Your Own A4 Cards

Looking for DIY card-making ideas? Browse through our projects for inspiration, including free patterned paper templates to start.

Understanding Card Sizes

  • A4 card size is a sheet of A3 folded in half:
  • 210 x 297 mm
  • 8.3 x 11.69 in
  • A5 card size is a sheet of A4 folded in half:
  • 148 x 210 mm
  • 5.8 x 8.3 in
  • A6 card size is a sheet of A5 folded in half:
  • 105 x 148 mm
  • 4.1 x 5.8 in
  • A7 card size is a sheet of A6 folded in half:
  • 74 x 105 mm
  • 2.9 x 4.1 in
  • DL cards are longer and thinner than other card sizes and are a third of an A4 sheet:
  • 210 x 99 mm
  • 8.3 x 3.7 in

Designing Your Own Envelopes

Knowing envelope sizes can ensure a proper fit. Envelope sizes in the UK correspond to the ISO 216 system using the "C" label format.

  • C4 envelope: Slightly larger than an A4 card, fits unfolded A4 paper.
  • 229 x 324 mm
  • 9 x 12.75 in
  • C5 envelope: Slightly larger than an A5 or A4 folded in half.
  • 162 x 229 mm
  • 6.3 x 9 in
  • C6 envelope: Slightly larger than an A6, fits A4 folded in quarters.
  • 114 x 162 mm
  • 4.5 x 6.3 in
  • C7 envelope: Slightly larger than an A6, fits A4 folded in eighths.
  • 81 x 114 mm
  • 3.2 x 4.5 in
  • DL envelope: Slightly larger than a DL card.
  • 110 x 220 mm
  • 4.3 x 8.6 in

You can easily create your own envelopes using our free templates for decorative or simple designs. Download the free envelope template for various choices.

Mastering Your Standard Card Sizes

By understanding card sizes, you can streamline handmade card creation and even package-sending tasks. Keep this guide handy as a quick reference, and consider printing the size chart to keep nearby in your craft stash.

Transitioning to DIY Creating

Explore our "how to make an envelope" tutorial to create custom envelopes that perfect match your DIY A4 cards.

  1. In the realm of handmade card making, knowing standard UK card sizes is crucial to avoid confusion with US sizing when purchasing card blanks for personal projects or creating your own.
  2. According to this comprehensive guide, an A6 card measures 105 x 148mm when folded or representing the front face, and it is based on the ISO 216 international standard paper sizes, which also underlies other A paper sizes.
  3. For those venturing into DIY card making, understanding UK card sizes will simplify envelope purchasing and ensure a proper fit for fashions in fashion-and-beauty, food-and-drink, home-and-garden, travel, education-and-self-development, and other occasions.
  4. By mastering standard card sizes, you can transition from purchasing pre-made cards to creating your own A4 cards, utilizing free patterned paper templates while designing appropriate envelopes using our free envelope templates for decorative or simple designs.

Read also:

    Latest