Just posting a photo in regard to a question I had in a thread on here. I came in later in the day. So I’m unsure about other sizes being available. There was a stack of these sizes. But to compare; this one would be considered a large box. Dimensions included in the last photo. Post office clerk told me if we used the white ones, there’s a chance they can send it pack because it costs more. So beware. Happy Poshing!

Never heard of ground advantage, so I’m used to using first class and priority

Hey all! I want to use my own custom boxes for my ecommerce business, the small foldable cardboard box will be no bigger than 7 inches, by 5 inches by 5 inches, roughly. Can I do ground advantage still so long as its under 15 ounces? And is using my own branded box okay? Will be printing labels myself.

I saw on a separate thread that the limit is 70 pounds? So I am also confused a little bit.
I am certain I can keep my weight below 15 ounces perhaps, but maybe it will be slightly over. I am shipping a light vitamin pack, like 10 - 15 capsules (but dont want to get them crushed, hence the box )

How would you all ship this as cheap as possible to still fall within 2-5 day window?
Thanks in advance!