Small, light items packed into padded mailers are cheapest when shipped by USPS. Small, heavy items are cheapest when shipped using USPS flat-rate pricing. Large, light items are cheapest when shipped with USPS Priority Mail. Large, heavy items are cheapest to ship using consolidated freight.
Is a bubble mailer a flat rate envelope?
Order free Priority Mail Flat Rate® Padded Envelope - lined with bubble padding for extra protection, it is a great flat rate shipping.
How much does it cost to mail a 6x9 bubble mailer?
A 6” x 9” envelope weighing up to 1 ounce requires one $. 50 first class rate stamp. For each additional ounce, you'll have to pay $0.21. So, for weight between 1 and 2 ounces, it'll cost you $0.71.
How much does a 4x8 bubble mailer weigh?
The weight of each bubble mailer weigh is 0.48 ounces.