My card is about the size you specify, but sometimes my client will have different preferences, and dimensions like 90mm x 50mm will also fit inside a business card holder.

Thanks for the ISO link, by the way. I’m sure I’ve seen it before, but I never took the time to view the ID card sizes. Bookmarked.

This is taken from a fantastic paper resource:

“ISO 7810 specifies three formats for identification cards:

ID-1 = 85.60 × 53.98 mm (= 3.370 × 2.125 in)
ID-2 = 105 × 74 mm (= A7)
ID-3 = 125 × 88 mm (= B7)
ID-1 is the common format for banking cards (0.76 mm thick) and is also widely used for business cards and driver’s licences.” http://www.cl.cam.ac.uk/~mgk25/iso-paper.html

What dimensions do you usually design business cards at if not the above?

As for the “Subscribe to comments” question, that’s a fantastic idea and something that I’ll look into. I’m not a coder of any sort, but I’ll certainly look into that. Cheers David.

I’m curious, in your comment above you say that 85×49 is the “wrong dimension for a business card”. What’s the right size?

A little off-topic, and I hope you don’t mind, I think the addition of the “subscribe to comments” plugin would be great on your blog. I’ve found that it works wonders when generating chat in the comment threads.