The boxes come flat-packed but assembled. Simply unflatten the boxes to make them stand up, then tuck both ends in to close the box. See above for a step-by-step assembly video.

If you're worried about your goods being damaged, you can pad the book mailer boxes. Depending on how much space there is, you can use different materials to help protect your product. If there's a little space around the product, you can wrap it in bubble wrap or fill the space with tissue paper. If there's lots of space, packing peanuts or shredded paper or cardboard will offer cushioning inside. You can also add a fragile label to the box once you've sealed it with our water-activated tape or poly tape.

The dimensions and weights for each box are as follows:

These are common sizes for flat shipping boxes, though shipping prices could vary. We recommend checking prices with your local postal service.

Our book boxes are made from 50% recycled cardboard, so you should be able to put them in your regular cardboard recycling – though it's always worth checking your local council guidelines. Just remember to empty them out and break them down.

You can order as few as 1 flat shipping box, completely customized to your liking. That way you can see your custom box in person - and then feel confident as you order a larger quantity.

Yes. You can order sample boxes in all available sizes. We'll send a box pre-printed with a sample design for only $4 – and get free standard shipping when you use code SAMPLEBOX at checkout. This way, you can get a feel for the quality and try out different sizes before you order your one-of-a-kind design in bulk. Order your sample flat shipping boxes now. And if you'd like to see your unique design in print, you can order 1 custom-printed flat shipping box on this page to make sure everything looks as you envisioned before placing your bulk order.