Originally Posted by suziehammond
There is a .pdf of the thickness they are supposed to accept I printed it out to make sure I am in requirements. This is the size the machine will accept without kicking it back according to the PO
Don't know if pdf uploaded for you guys. Anyway the template is on the USPS site. haven't measured but looks like @ 3/8 to me.
It's 1/4" thickness limit, for 1st class envelopes. I made my own using a piece of cardboard & my quilter's ruler, and made the opening a shade less than 1/4". I haven't tested it yet, but if I get flack I will. Sorry, but I'm not paying $25 for the 'official plastic guide' they put out.
I've recently discovered the regional rate flat rate, and have ordered a small supply. I don't ship a lot, but hoping my business will pick up soon. I have a supply of boxes from gift card FRE's on up to large FRB's, with more of the new boxes (regional, game box) on the way.