This template is based on the image you see when you upload a new artwork, the rectangle with the diagonal line overlay.
I assumed that the overlay zone is where bleed would happen during printing, so I imported a screenshot into Photoshop and scaled it up to Redbubble's recommended dimensions of 7632 by 6480 pixels. I then made the zones different colours and clearly labelled them.
Here is the document I created.
As far as testing, I uploaded this template as an artwork and took screenshots of how it looked on all the sizes of blankets and tapestries.
As you can see, the small blanket shows only the safe print area. The medium and large sizes both show some of the bleed area, but curiously the medium blanket shows more on the horizontal axis than the large blanket.
All three sizes of tapestry show most of the horizontal bleed area, and about half of the vertical bleed area.
I have provided a PSD file, with all the areas as separate layers, so you can easily insert your own artwork and make sure the important parts of it are within the safe area.
The file itself is 12.7MB. I've compressed it into a zip archive that's 989KB.
Or, if you're not comfortable downloading stranger's archives, just save that .PNG template image I showed you earlier.
I hope that this template will help you make bigger and better blankets and tapestries for Redbubble. If you liked this content, consider buying me a Ko-Fi to support this blog.
And if you have any questions, or suggestions for another template you desperately need, leave a comment below!
Peace, love & sunshine,