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How to properly package vinyl records and compact discs for shipping
Use proper mailers.
Lps and maxi-singles should always be shipped in a sturdy, cardboard mailer (with cardboard inserts) specifically designed for shipping 12-inch records. The length and width of the mailer should both be between 12 to 13 inches (33.0 cm).
The height or thickness will depend on the number of discs being shipped. When packing an lp, follow these steps : Place at least one 12 " x 12 " cardboard insert into the bottom of the mailer box.