What are the Different Sizes of Paper

Hey there! Today I wanted to chat about different paper sizes. I know, pretty boring topic right? But stick with me, because it's actually pretty important to understand if you ever have to design or print anything.

Let me back up a sec and explain that there are these international standards that define paper sizes based on some mathematical ratios so that when you cut a sheet in half you get two sheets of the same proportions. Yeah, I won't bore you with the details.

The most common sizes are the A series, like your normal A4 sheets. You've definitely seen those. They're kinda like the standard size for office documents and magazines and stuff in most places across the world. Except for in North America. Of course we Americans have to do things differently!

Instead of using the A series, the US and Canada use what's called the ANSI system. So we got sizes like Letter, Legal, Tabloid. Most common is Letter at 8.5 x 11 inches. That's what most of our documents are printed on. Then Legal is a longer version of that for official contracts and whatnot.

Here is a table summarizing some of the key paper sizes discussed in the post:

Paper Size SeriesCommon SizesDimensions (inches)Dimensions (mm)Standard Uses
A Series (ISO standard)A033.1 x 46.8841 x 1189Posters, large format printing
A123.4 x 33.1594 x 841Posters, charts, large formats
A216.5 x 23.4420 x 594Posters, graphics
A311.7 x 16.5297 x 420Graphics, brochures
A48.3 x 11.7210 x 297Letters, documents, magazines, books
A55.8 x 8.3148 x 210Brochures, graphics
ANSI (North America)Letter8.5 x 11216 x 279Letters, documents, magazines
Legal8.5 x 14216 x 356Legal documents, contracts
Ledger11 x 17279 x 432Spreadsheets, large formats
Tabloid11 x 17279 x 432Newspapers, newsletters, posters
ArchitecturalARCH A9 x 12229 x 305Small architectural plans
ARCH B12 x 18305 x 457Architectural plans
ARCH C18 x 24457 x 610Large architectural plans
ARCH D24 x 36610 x 914Oversized architectural plans
ARCH E36 x 48914 x 1219Very large architectural plans


Anyway, let's get back to choosing paper sizes...

When you go to design something you gotta think - who's gonna see this and what am I trying to say here? Like if it's a poster to promote your friend's band playing down at the local pub, you'll probably just use some basic Letter size sheets you have lying around the house. But if you're making a big impressive poster for some corporate event, you'll bust out something gigantic like those crazy 36 x 48 inch posters they have at the science fair.

You also gotta look at how you're gonna lay out all your text, images, colors. Will it look good small or do you need more space to showcase everything? Oh and figure out your printing situation too - are you just printing on your inkjet at home or sending stuff out to a professional printer? That'll impact what kind of paper you can use.

I feel like I'm rambling now, but the main thing is to just step back and consider all these factors when you start a project. Take your time picking the right paper size and it'll make your whole design look sharp! Well, umm that's about all I got for today. Let me know if you have any q's on paper sizes or design stuff. Happy to chat more! Ok catch ya later!


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