10 1/2 x 14 1/2

10 1/2 x 16

10 x 13

10 x 7 3/4 x 1

11 x 13 1/2

11 x 13 x 2

12 1/2 x 17 1/2

12 3/4 x 15

12 1/2 x 9 1/2 x 1

12 x 15 1/2

13 3/4 x 11

13 x 18

14 1/2 x 18 1/2

14 1/2 x 19

14 1/4 x 18 1/2

15 x 12 1/2 x 1

15 x 20 x 4

17 x 14 x 1

17 x 21

20 x 24 x 4

4 x 8

5 1/8 x 5 1/8 Square

5 x 8 1/2

6 x 10

6 x 8 1/2

6 x 8

6 x 9 1/2

6 x 9

7 1/2 x 11

7 1/4 x 10 1/2

7 1/4 x 12

7 1/4 x 8

7 3/8 x 9 5/8

7 x 6 3/4

7 x 9

8 1/2 x 12

8 1/2 x 13

9 1/2 x 12 1/2

9 1/2 x 14 1/2

9 3/4 x 12 1/4

9 3/4 x 12 3/4

9 x 11 1/2

9 x 12

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Mailers By Size

Mailers by Size for Shipping, Packaging & Fulfillment

Choosing the right dimensions can make business shipping more efficient while helping contents fit securely inside the package. JAM Paper mailers by size range from compact envelopes for small accessories and documents to oversized options for apparel, artwork, merchandise, and bulkier orders. The broad selection makes it easier to match packaging to product dimensions, fragility, and shipping requirements.

Small, Medium & Large Mailers for Every Shipping Need

Different shipment sizes call for different levels of space, structure, and protection. Smaller mailers suit cards, samples, accessories, and compact goods, while mid-size selections accommodate documents, catalogs, customer orders, and merchandise. Large and expandable shipping envelopes provide additional capacity for textiles, portfolios, bundled products, and higher-volume contents.

Bubble, Photo, Poly & Padded Mailers in Multiple Sizes

Material and construction matter just as much as exterior dimensions when selecting business packaging. Bubble and padded mailers add cushioning, photo mailers reinforce flat pieces, and poly styles provide flexible coverage for apparel and other non-fragile goods. With numerous size options available, retailers, e-commerce sellers, offices, and fulfillment teams can choose shipping supplies that better fit everyday orders and specialized mailing tasks.