This is the sizing and materials guide. If your spec is settled and you want to configure and order, go to custom book boxes. If you are still deciding between a mailer, a slipcase and a presentation box, start here.
Start with trim size, then the stack
Book dimensions are quoted as trim size, which is the page block, and a bound book is slightly larger than its trim because of the cover boards. Measure the finished book with the jacket on.
| Format | Typical trim (in) | Box note |
|---|---|---|
| Mass market paperback | About 4.25 x 6.87 | Ships several to a box, size for the stack |
| Trade paperback | About 5.5 x 8.5 or 6 x 9 | The most common single book mailer size |
| US hardcover | About 6.14 x 9.21 | Add jacket thickness and cover overhang |
| Large format or art book | About 8.5 x 11 and up | Heavy, corners need real protection |
| Boxed set | Stack of titles | Measure the assembled stack, not one volume |
Then measure the spine thickness of each title in the shipment and add them up. Stack thickness, not trim, is what decides the depth of the box. More dimension detail sits on our book box dimensions page.
Where books actually get damaged
Almost all book damage happens in two places: the four corners of the cover and the top edge of the spine. Both are caused by the book moving inside a box that is too big for it. That is why a snug fit outperforms a padded one, and it is why a multi depth mailer with several score lines is standard in book fulfillment. One box collapses down to fit one paperback or opens out for three, so the fit stays tight across a range of orders and the fulfillment team holds fewer sizes.
Three builds worth comparing
- Multi depth book mailer. E flute or B flute corrugated with a front tuck. The workhorse for shipping single orders.
- Rigid slipcase. An open ended sleeve for a boxed set, made from wrapped rigid board. A retail object rather than a shipper, so it usually travels inside an outer carton.
- Two piece presentation box. Lid and base for limited editions, signed copies and press mailings, often with a fitted insert or a ribbon pull.
Rigid builds take the longest to make, and specialty imported work can run up to about 12 weeks, so plan those against a publication date rather than a reprint.
Print and finish decisions
Printing the inside of a book mailer is unusually effective, because the recipient is a reader who is paying attention. On slipcases and presentation boxes, matte lamination with a foil title is the standard approach and it suits the object. Avoid heavy gloss on anything that will sit on a shelf beside the book, since it dates faster than the book does.
Minimum, pricing and lead time
Minimum order is 100 boxes, which covers a single print run, a launch mailing or a limited edition. Unit pricing opens at about $0.48 per unit at bulk volumes and the figure for your run is written on the quote. Turnaround is stated per product across three lanes: rush (expedited production plus air freight, premium of about 7 to 25% depending on the job), standard (air, from about 7 business days plus 2 to 5 days for delivery), cost saver (sea). The die, the plates, design support, free US shipping and a digital proof are included.
Order a known spec at the book box product page, or send your trim size and stack thickness to our quote form and we will size a mailer that fits one book and three.
