Testing different pens on different paper thickness (80, 120, 140, 160 and 180 GSM paper)
Today’s post was requested by a reader, that wanted to see how much ghosting or bleed through a particular brand of pen had on different paper thicknesses. But I didn’t want to just rattle off a list of ranges within that pen brand, and send you on your way, without also considering the type of paper one is writing on. So, in this post we’ll cover:
- What paper thickness you should be looking for when buying a bullet journal or notebook
- What type of pens are the least likely to ghost and / or bleed through the page
- What pens I recommend (my all time favorites)
- Pens you should avoid if you really don’t want any ghosting or bleed through
- Pen tests for different paper thicknesses so you can really see why paper thickness matters!
What paper thickness should you buy?
The higher the GSM number = the thicker the paper.
If you’re shopping for a bullet journal notebook (or a planner) and aren’t sure what paper weight is ‘good’ – my rule of thumb is:
- Anything less than 120GSM = I probably won’t buy unless the rest of the notebook is pretty / has extra features (or is super cheap), there is likely to be heavy ghosting and some bleed through
- 120GSM = expect some indenting for ballpoint pens and minor ghosting
- 120GSM or more = should be ok, you might get unlucky with some minor ghosting
- 160GSM = great, there shouldn’t be any ghosting or bleed through
The above guide is just that – a guide – because you never really know how the paper is going to go unless you actually try it out with the pens you’d like to use. That’s why I always do a thorough pen test when I get a new planner or bullet journal!
See these posts for some of my previous pen reviews
- 3 pen brands that have lasted more than 3 years
- Ballpoint versus gel pens: which are better for planning?
- Favorite needle tip pens (and the ones I don’t recommend)
- The best white pens for writing on black paper
- What pens write best on kraft paper?
- Favorite Rainbow Pens for Planning (Roundup)
- 5 expensive pen brands that are worth the money (I have no regrets for splurging on them!)
- Cheap versus expensive pens: is there actually a difference in quality?
- Planner pen testing in the Erin Condren Life Planner, Plum Paper, Happy Planner by MAMBI and Limelife Planner
Which pens do I recommend?
Disclaimer: this list contains affiliate links. If you make a purchase using my affiliate links I’ll receive a small commission at no extra cost to you.
My recommendations have changed many times over the years as I’ve tried more and more pens, but the pens that I always come back to are:
- Papermate Inkjoy Gel 0.7 – I’ve had these same pens for 7 years. The ink colors are vibrant and even more impressively – the ink hasn’t dried out!
- Pilot Frixion erasable – get the 0.7 pen tip if you don’t want indenting on the back side of the page
- Staedtler triplus fineliner – heaps of colors, write smoothly and come in a storage case, the ink in mine has lasted more than 7 years
Noteable mentions: Muji Gel, Pilot G-2, Stabilo Point 88 Fine, Pilot Pop-Lol, Creative Devotion, Kikki K fineliner…. Honestly I could list way more but, I shall resist. Because I already listed them all in this post 🙂 Rating every pen I own (100+!) (The pens you need… and the pens you don’t)
The best pens to avoid ghosting and / or bleed through
- Ballpoint pens (but these can sometimes indent the back side of the page)
- 0.3mm or 0.5mm tip pens (but sometimes the tips of these are sharp and scratchy to write with)
- Fineliner pens
- Good quality gel pens (like the Papermate Inkjoy Gel)
Is ghosting reduced if you use black pen?
No, it doesn’t matter what pen color you use, if there’s ghosting there will be ghosting for any color. While you might think it’s better to use a lighter color like yellow, pastel pens are usually really hard to see what you’ve written – I’d take ghosting over that any day.
Read more: Yellow pen swatches (and my recommended pens that have yellow ink you can actually see)
Pens you should avoid
- Anything thicker than 0.7mm tip
- Marker pens e.g. Uni Pis, Staedtler, Pure Color F C-Land, Tombow MUJI Hexa Pen
- Gel pens from cheap stores (these always have bad ghosting and bleed through) – if you’re going to use gel pens, buy quality and well known brand names!
Testing the same pens on different paper thicknesses
If you follow my planner reviews and bullet journal notebook reviews, you’ve probably noticed that I try and test the same pens, highlighters, stamps etc. each time. This is so it’s easier for me to compare the paper quality. So let’s take a look!
80GSM Paper
This used to be basically the only paper option for dot grid notebooks around 8 years ago when I started bullet journaling. Back when the Leuchtturm was considered the ultimate bullet journal notebook. Thank goodness there are more notebook options these days – the paper quality in the Leuchtturm notebooks is awful!
Pen testing in the Leuchtturm 1917 notebook (80 GSM paper)



Leuchtturm1917 Bullet Journal Notebook Review
120GSM Paper
Apart from the nice rainbow colors to choose from and a B5 page size option, I’ve never understood why the Leucchturm dotted notebooks are so popular. The paper doesn’t get any better in their 120GSM option either:

Leuchtturm 1917 Weekly Planner Review
The only exception to the above that I’ve found is the paper in the Clever Fox notebook. For some reason their 120GSM paper is actually pretty good with very light ghosting for pens and highlighters:

Clever Fox Dotted Notebook Comparison: Original versus 2.0 Journal – which is better?
140 GSM
The only dotted notebook I’ve found with 140 GSM paper is the Vivid Scribbles.

Only some ghosting from the MAMBI stamps. No ghosting or bleed through for any of the pens and highlighters.

160GSM Paper
There has (thankfully) been more 160GSM dotted notebooks released in the past few years. Some of my past reviews (in no particular order):
- Archer and Olive
- Scribbles That Matter Pro
- Slow Journal
- Notebook Therapy
- Buke Stationery
- Tekukor
- Amanda Rach Lee
- Seqes
- ESC. Goods
Click here to download the comparison. Existing blog subscribers can find this in the free printables library.
As an example, here are the results of a pen test in the Amanda Rach Lee Notebook which has 160GSM paper.

No ghosting or bleed through for highlighters and pens (even the thick marker pens). There is a tiny bit of ghosting from the Happy Planner stamp (not very obvious and wouldn’t stop me from using the back side of the page).

In comparison, here are the results from a pen test in the Archer and Olive, which also has 160 GSM paper.


Notebook Therapy also has 160 GSM paper and it had some ghosting for the highlighters and dot markers.

This is why I always do a pen test!

180 GSM paper
I’ve only found one notebook that had paper thicker than 160 GSM and that is’ Buke Stationery’s 180 GSM notebook. There is a big difference in the feel of 160 GSM to 180 GSM paper. The 180 GSM paper feels closer to cardstock. For the DIY covers I make I use 200 GSM which is thin cardstock that can run through my printer.
So how does a pen test stack up?
Same results as a 160 GSM notebook. And if you’re thinking about using watercolors on 180 GSM paper, I’d re-think that. You will blunt the tips of your brush pens very quickly. There is more resistance when writing and the paper doesn’t feel as smooth.
I don’t recommend 180 GSM paper, just stick to 160 GSM.


What notebooks do I recommend if you want no ghosting or bleed through?
Any on my list of notebooks with 160 GSM paper. In no particular order:
- Archer and Olive
- Scribbles That Matter Pro
- Slow Journal
- Notebook Therapy
- Buke Stationery
- Tekukor
- Amanda Rach Lee
- Seqes
- ESC. Goods
What planners do I recommend if you want no ghosting or bleed through?
This one is a little harder to answer, as most planner companies only offer 100GSM paper. I can deal with this as long as the paper is smooth to write on and bright white (Plum Paper, Limelife Planners).
The only planner I’ve found with thick paper is the Inkwell Press which is 140GSM. I am yet to find a paper planner that has 160GSM paper… Maybe soon!
Related posts
- Finding planner peace: how to choose the right planner page size for you
- How to organize your life using 1 simple spreadsheet in Excel (plus free download)
- Favorite planning supplies from Amazon (Gift Guide)
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Hello,
The best pens that I have found is the “LePen” There is no bleed on any type of thin paper.
I use these pens for journals and making my homemade greeting cards. I use these for the message on the front of my cards as well as the greetings inside of my cards.
Just bought a clever fox planner and those dated and undated planners are 120 gsm. let you know how it is when I get it.