Hi,
Do you want to buy pre-formatted check stock that will work without having to customize it in Report Writer?
Several check makers, like Deluxe, say they have one specifically for Dynamics GP. Make sure it is 'Dynamics' and not Great Plains Software, the formats are very different.
Honestly though, in the 20 yrs I've been doing this, there has always been some little tweak that was needed to get everything to line up perfectly. But really, it would have probably been close enough in many cases.
If you have a check printer that will print to your specifications, simply print a check on blank paper and tell them to make their check to match the existing format. Just make sure the format will fit in your window envelopes.
Kind regards,
Leslie