What kind of bags can you ship with USPS?
What kind of bags can you ship with USPS? Flats or large envelopes These can be made of paper, plastic bags/polyethylene, flat corrugated boxes, or cloth. Polyethylene mailers, like our Poly Mailers, must be at least 2 mils thick for shipments up to 5 pounds and 4 mils thick for shipments up to 10 pounds (and are not acceptable for shipments over 10 pounds).
Is it cheaper to ship with your own packaging?
As we mentioned above, combining your own custom packaging with the right USPS service is often more cost-effective than using flat-rate boxes. One such option is taking advantage of cubic pricing. Priority Mail cubic pricing is a more efficient USPS service for shipping small packages that weigh up to 20 pounds.
Can I ship something in a bag with USPS?
Parcels over ¾-inch thick (or exceed other dimensions required to qualify as a large envelope/flat) but still relatively thin could be packaged in expandable paper envelopes, poly mailers/plastic bags, paper bags or wrap, or even cloth.
Does USPS check packaging?
If the package is not classified as Priority Mail Express™ service (domestic or international), Priority Mail® service, First–Class Package Service™, or an international letter package, it may be opened and its contents examined.
What is the cheapest way to ship a bag of clothes?
USPS offers a variety of shipping options, including Priority Mail, First-Class Mail, and Media Mail. For the cheapest way to ship a big box of clothes, Priority Mail is likely your best option. Priority Mail is a flat-rate shipping option that includes tracking and insurance.