I'm looking for the dimensions of an Acer AL2216WBD without the stand, it seems like every site has a different set of dimensions and it seems like they all include the stand as well.
Try sending Acer an E-mail by going here. I just sent them a question about the same monitor but on a totally different topic yesterday and they still haven't replied (not surprised though considering when I sent it) but I would hope that I will get a response by Monday. Remember that they only answer E-mails during business hours and in the order in which they are received (aka FILO, first in last out).