right size and resolution for print document

Hi Experts,

I need to print a banner around 18 X 3 feet. I am going to use Adobe Photoshop.

What is the size of the image that I need to start with? By size, I mean the width, height, resolution, color mode, that I need to use so that someone who gonna print it can do his job without telling me to redo it again because I am using wrong res.

I have no experience with printed material.

Thanks in advance
chainfearAsked:
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AustinComputerLabsCommented:
Standard is 300dpi CMYK in the size you want the final product.
Once the design is done flatten and export to a print quality .pdf

Rick
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AustinComputerLabsCommented:
Also if you want to have the color go all the way to the edge that is called a bleed and you will need to ask if they can do it.
If you do not need a bleed find out how much empty border they need for their setup.
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chainfearAuthor Commented:
What about the height and width? Do I need to follow same exact size that I wanted, (18 X 3) ft? It is going to be slow to work on big file like that, isn't it?
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AustinComputerLabsCommented:
Yes you will want to design with the size you want the final product to be.

Speed of course depends on complexity of the art and the speed of the computer system.

Give it a try and see if your system can keep up.
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chainfearAuthor Commented:
Thanks!
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David BruggeCommented:
Got to this question to late, but I have my 2 cents to add.

I suspect that artwork that is 64800px X 10800px in CMYK may well choke your print provider's RIP. Flattened, that's still a 2.6 gigabyte file.

Whenever you are preparing a job for print ALWAYS speak to the printer about what they need in order to print. Some printers need the artwork RGB, some need it CMYK. It depend on the device and software they are using.

Resolution for a banner depends on the viewing distance. If the banner has very tiny detail and people will be up close and viewing it from 18" to 24" away (not very likely) then yes, 300 ppi would be a good resolution.

Actually, most magazines, brochures, postcards, etc are printed with a line screen of 130 to 150 lines per inch. The rule of thumb is to provide the printer with twice the line screen the job would be printed at, so for a magazine, etc 260 to 300 ppi would be a good resolution.

Newspapers, on the other hand often print with a line screen of 70 lines per inch. For them, you would provide a resolution of 140 ppi. When I make banners that hang from the ceiling of a store, I usually provide the printer artwork that is 100 ppi. For billboards, I provide artwork that is 24 ppi. When viewed from several hundred feet away, you cannot tell the difference between 24 ppi and 300 ppi!

So check with the company printing your banner and see what they recommend.
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