What size should I specify for banner printing?

Question

Adobe Photoshop

You need to draw a banner in Photoshop, the banner size in real life will be 1800cm by 1300cm. What settings do you use in Photoshop? Resolution, dimensions, etc.

And how to calculate this data with other sizes?

Answer 1

Photoshop does not work well with these sizes. Iron may not cope at all. I recommend Illustrator if you have time to learn