What Resolution Do I Need for a Canvas Print?

The advice you will find everywhere is that you need 300 DPI to print anything. That number comes from commercial offset printing — magazines, brochures, things you hold at reading distance. Canvas is not viewed at reading distance, and canvas is not a smooth substrate, so applying the 300 DPI rule to a canvas print will send you looking for a file four times larger than you actually need.

What resolution actually means here

DPI on its own is meaningless. What matters is the pixel dimensions of your file divided by the physical size you are printing. A 3000 × 2000 pixel photo printed at 10 × 15 inches is 200 DPI. The same file printed at 20 × 30 inches is 100 DPI. Same photo, same pixels — the only thing that changed is how far apart those pixels get spread.

Because a canvas hangs on a wall and you look at it from across the room rather than from 30 cm away, the effective resolution requirement drops substantially. The weave of the canvas itself also breaks up fine detail, which hides softness that would be obvious on glossy photo paper.

The numbers we work to

For our standard sizes, these are the minimums we look for before printing:

16x20 — at least 1600 × 2000 pixels. 24x36 — at least 2400 × 3600 pixels. 36x48 — at least 3600 × 4800 pixels.

That works out to roughly 100 pixels per inch, which is well below the 300 DPI figure and entirely appropriate for wall art. Photos from any phone released in the last five or six years will clear the 16x20 threshold without difficulty. A 12-megapixel phone photo is typically around 4000 × 3000 pixels, which is enough for a 36x48 at the numbers above.

How to check your own file

On a Mac, right-click the image, choose Get Info, and look at Dimensions. On Windows, right-click, Properties, then the Details tab. On a phone, open the photo and look at the info panel — on iOS, swipe up on the photo; on Android, tap the three-dot menu and choose Details.

You are looking for two numbers like 4032 × 3024. Compare them against the minimums above for the size you want. If your smaller number clears the requirement, you are fine.

What we do if the file is short

We check every uploaded file against the size you selected before anything goes to the printer. If the resolution will not hold up, we contact you — either to suggest a smaller size or to ask whether you have a higher-resolution version. We would rather have that conversation before printing than ship something soft and deal with a return afterwards.

Things that matter more than resolution

In practice, most disappointing canvas prints are not caused by insufficient pixels. They are caused by motion blur, missed focus, or heavy digital zoom at the time the photo was taken. None of those can be fixed by having a larger file, because the detail was never captured.

Before you order, open your photo and zoom in to 100% on the most important part of the image — usually someone's eyes. If that detail is crisp at 100%, the print will be good. If it is already soft on screen, enlarging it onto canvas will make that softness more visible, not less.

The other common issue is a screenshot or a file that has been sent through a messaging app. Both WhatsApp and Messenger recompress images aggressively and can reduce a 4000-pixel photo to under 1000 pixels. Always print from the original file, not from a copy that has been forwarded.