What is the biggest box I can fit into a USPS drop box?
December 27, 2012 6:49 AM Subscribe
What are the maximum dimensions (in each direction) of a box that will fit in a standard USPS blue drop box of the sort that you find on a city street corner?
posted by enn to Grab Bag (12 answers total) 2 users marked this as a favorite
I am ordering some boxes to use for mailing and although I usually take packages to the post office while it is open, I'd like to order the largest size that will give me the option of using USPS drop boxes after hours.
The maximum width is easy enough to measure and seems to about around 14" but the maximum height and depth are trickier due to the curved top and pivoting mail drawer.
Buying one of each of various sizes and trying them is not an option, since the type of boxes I am looking at are generally only sold in bundles of 25 or 50.
I'm looking for an answer from an authoritative source, not speculation—I can speculate myself.
I'm aware of the weight limits for stamped packages in drop boxes, but they do not apply to packages with printed labels from services like Endicia, so they are not relevant here.
I expected this information to be easy to find but I have not had much luck with Google or the USPS web site.