How To Measure A Box For Usps. Length x width x height. The smallest box has a minimum length of 6 inches and a minimum height of 4 inches.
If geometry isn't your forte, picture a box as a skyscraper. Multiply the result by two. Use a sturdy box with enough room to add cushioning for fragile items and to prevent items from shifting.
The other (3) measurements are what the 3 sides measure.
(lxwxh) where the height is the vertical dimension of the box when the opening is facing upwards. The maximum weight allowed for shipping boxes and parcels is 70 pounds. You should be able to enter exact box measurements in etsy shipping labels or other label services, e.g., 15.5 x 13.25 x 8. The smallest box has a minimum length of 6 inches and a minimum height of 4 inches.