Paper weight, bleed and ghosting: reading a notebook spec

One number on the back of a notebook predicts most of how it will behave with your pen.

What this covers

What gsm measures
Bleed-through and show-through
Why weight is not the whole story
Matching paper to pen
Ruling and spacing
Perforation and removability
Binding and how flat it lies
Page count and practicality
Testing before committing

What gsm measures

Paper weight is quoted in grams per square metre, which is a density rather than a thickness, though the two correlate closely within a paper type. Standard printer paper is around 80gsm. Notebook paper commonly runs from 70gsm up to 120gsm, and paper sold for fountain pens often sits at the upper end.

Bleed-through and show-through

Bleed-through is ink passing physically through the sheet so it appears on the reverse as a wet mark. Show-through, or ghosting, is simply seeing the impression of writing from the other side without the ink having travelled. Light paper does both; heavier paper reduces both, and coating reduces bleed more than weight alone.

Why weight is not the whole story

Two 90gsm papers can behave completely differently depending on sizing, the treatment that controls absorbency. A well-sized 80gsm sheet can outperform a poorly sized 100gsm one with wet ink. Where a manufacturer names a paper by brand rather than only by weight, that is usually a signal it has been chosen for behaviour.

Matching paper to pen

Ballpoints and pencils work on almost anything. Gel pens need a little more. Fountain pens and wide-nib markers are the demanding case, because they deposit far more ink and dwell longer on the surface. If you write with a fountain pen, paper weight is the specification to check first.

Ruling and spacing

College ruled is around 7mm between lines and wide ruled around 8.7mm. That difference decides how much fits on a page and how comfortable it is to write in. Dot grid has become popular because it guides without visually dominating, and it suits diagrams as well as prose.

Perforation and removability

A perforated edge means pages come out cleanly, which matters if you hand work over or file it. Unperforated bound notebooks keep everything together, which matters if the book is a record. Neither is better, but discovering which you needed after the fact is annoying.

Binding and how flat it lies

Spiral binding lies completely flat and folds back on itself, which suits writing in a confined space. Sewn bindings lie reasonably flat and last longer. Glued bindings are the cheapest and tend to release pages over time. If you write on both sides across the gutter, binding matters more than paper.

Page count and practicality

A very thick notebook is heavier, harder to keep flat and more painful to lose. Thinner books encourage finishing and archiving. For daily carry, something in the low hundreds of pages is usually the practical compromise.

Testing before committing

If a notebook is going to be a system rather than a purchase, test one before buying several. Write a page with your usual pen, check the reverse, and see whether it lies flat where you actually work. Ten minutes of testing prevents a shelf of nearly-right notebooks.

How this applies when you are buying

The two things worth checking before you commit to a notebook are paper weight and whether refills exist. Thin paper shows ink through the page, which matters if you write with anything wetter than a ballpoint. A system without an available refill is a system you will abandon.

Bound and spiral notebooks, subject books with dividers, refills for notebook systems, and specialist templates.

On the shelf at the moment

These come straight from the Goods for the Study UWS shelf as you read this, not from a list typed when the article was written, so the prices and the availability are current.

Where to go from here

All of the above is the reasoning we use behind the counter at Goods for the Study UWS when someone asks. If you are weighing up two options and the listing does not settle it, ask: +1 212-274-1184 during opening hours, or help@paperandstudy.shop, answered within one business day.

If you order from us

Standard shipping is a flat $6.5 anywhere in the United States, and it is free once the order passes $45. Weekday orders normally leave Goods for the Study UWS the next working day, with three to seven business days in transit after that. Unopened items can go back within 30 days of delivery. Shipping Policy · Refund and Returns