Learn More:  

You are here: Knowledge Base : guidelines
Page of 1
Box Strength Guidelines
100% Recycled Corrugated is available in ECT board only. The below chart demonstrate UPS Box Strength Guidelines for both Bursting Test (125 lbs, 200 lbs, 250 lbs) and Edge Crush Test (23 ECT,
USPS Size guidelines
http://pe.usps.com/text/dmm300/101.htm 1.0 Physical Standards for Letters 1.1 Dimensional Standards for Letters Letter-size mail is: a. Min 5 x 3.5 x .007" - For 6 x 4.5" + min is 0.009" b. Max 11.5
Can you recommend a box or mailer size to ship my product?
We are limited in helping with size recommendations, unless we know the dimensions of what you need to send. We recommend measuring the item(s) you need to ship - Arrange them on a table or counter a