Definitions

Product Specifications

Paper product ranges are specified in a table that indicates substance, size, grain direction and the way the items are packed. These elements are explained below.

Substance (Weight)

A paper's substance (or weight) is shown in both metric and, where possible, the Imperial equivalent. The metric measure is grammes per square metre (g/m²) and is thus independent of the paper's format.
By contrast the Imperial measure was historically based on the weight in pounds (lbs.) of a ream (480 or 500 sheets) of a sheet size appropriate to the type or category of use. Across a wide range of products, this can lead to apparent anomalies. For the sake of clarity (and at the expense of historical accuracy), the lbs. column shows the weight in pounds based on 500 sheets of paper in a size of 22 x 30 inches (or 56 x 76cm).

For a taste of the Imperial measures still in use in the USA, see the guide in the last section

WEIGHT
g/m²	lbs.

185 300 356	90 140 170

Ref.

In the case of some newer product ranges, a maufacturer’s reference is of greater value than a calculated imperial measure. Here a Ref. column will replace the lbs. column.

WEIGHT	Ref.
g/m²

210	10640016 10640026 10640036 10640046

Size

Most items are, as in the first example, have their dimensions described in centimetres and inches.
Some larger items, such as a roll shown in the second example, are described in a mixture of units such as metres and yards.
Finally, some blocks, pads or envelopes that are manufactured to recognised sizes are shown in centimetres, with the Inches column indicating the well-known designation such as A4 in the example.

SIZE
cm	Inches

56 x 76 1.5 x 10m 21 x 29.7	22 x 30 59" x 11yd A4

Grain Direction

Where a paper is machine made, the fibre formation in the sheet will tend to be aligned with the direction of movement at the 'wet end' of the machine. This 'grain direction' is more apparant in Foudrinier made papers due to the higher speed of manufacture. The grain direction of a product runs parallel to the second dimension stated in the tables.

Mill and Split Packs

In order to indicate the most economical way for you to buy our papers, the PACK column shows, where applicable, how the manufacturing mill packs the product and the multiples in which we subdivide these packs.
In the first example the 100/25 entry indicates a mill pack of 100 sheets which we will split into multiples of 25 sheets.
In the second example the 250/250 entry indicates mill pack of 250 sheets that cannot be split.
In the third example the —/10 entry indicates that there is no mill pack quantity and the item is sold in multiples of 10.

PACK
Mill/Min

100/25
250/250
—/10

US Standard Paper Weights

g/m²	Lbs.	g/m²	Lbs.
Writing Weight (based on 17x22ins)		Cover Weights (based on 20x26ins)
89	24lb writing	176	65lb cover
Text Weights (based on 25x38ins)		216	80lb cover
89	60lb text	270	100lb cover
104	70lb text	352	130lb cover
118	80lb text	432	160lb cover
148	100lb text

US Standard Paper Sizes

Sheet Size
mm	Inches
216 x 279	8.5 x 11
584 x 889	23 x 35
635 x 965	25 x 38
660 x 1016	26 x 40
711 x 1016	28 x 40