Paper Size Guide

Handy guide to all the key sizes. Where paper and cardstock packs refer to A2 size, A3 size, A4 size and so on, you can view the tables below to understand exactly what that means in centimetres (cm) and inches. 
International A Sizes

Format W x H - Inches W x H - Millimetres
A1 33.1 x 23.4 in 841 x 594 mm
A2 23.4 x 16.5 in 594 x 420 mm
A3 16.5 x 11.7 in 420 x 297 mm
A4 11.7 x 8.3 in 297 x 210 mm
A5 8.3 x 5.8 in 210 x 148 mm
A6 5.8 x 4.1 in 148 x 105 mm
A7 4.1 x. 2.9 in 105 x 74 mm

Scrapbook Paper Sizes

These are designed to fit straight inside the most popular sizes of scrapbook albums.
Inches Centimetres
6 x 6 in 15.2 x 15.2 cm
8 x 8 in 20.3 x 20.3 cm
12 x 12 in 30.5 x 30.5 cm

GSM

GSM (grams per square metre, also known as g/m²) is a measurement of the thickness or density of paper. It is based on calculating the amount a sheet of paper would weigh, in grams, if it was exactly one square metre in size. Paper with a higher GSM will generally be thicker and therefore more difficult to crease or tear.
80-100 gsm Thin paper
100-120 gsm Medium weight paper
120-160 gsm Thick paper
160-200 gsm Thin card
200-300 gsm Medium weight card
300+ gsm Thick card
Best for card making 180gsm
Best for die cutting 200-220gsm
Best for origami 120gsm
Best for brush lettering Any weight of smooth paper or card