here are the dimensions of the global priority BOX
2 1/2" thick x 9" wide x 12" long
no binders will fit, except for the 4 and 9 pocket portfolios.
the box will hold 6 packs of 55pt thick toploaders, the 75pt, 2.5mm and the 25ct pack of 3.5mm would have to repacked into smaller packages to fit.
box will also hold a box of pages. but shipping would be $28 based on wieght.
6 packs in the box will cost $28 S&H because its between 3-4 pounds base d on shipping by wieght
5 packs on the large mailer would be $10 S&H
so you could receive 10 packs of thick toploaders sent in 2 mailers for $20 s&h
hope this helps
colin