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 Perfect for packing shallow or flat objects while saving on space and shipping charges.
Looking for custom boxes? Design your custom packaging supplies in our Custom Shop.

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Image SKU Dimensions (L x W x H) Unit of Measure Price Add to Cart
Corrugated Boxes, 18 x 10 x 4", Kraft, Flat C-3251 18 x 10 x 4" EA
$1.23
Corrugated Boxes, 18 x 12 x 2", Kraft C-3257 18 x 12 x 2" EA
$3.17
Corrugated Boxes, 18 x 12 x 3", Kraft C-3256 18 x 12 x 3" EA
$2.15
Corrugated Boxes, 18 x 12 x 4", Kraft C-3260 18 x 12 x 4" EA
$2.16
Corrugated Boxes, 18 x 12 x 5", Kraft C-3258 18 x 12 x 5" EA
$2.32
Corrugated Boxes, 18 x 12 x 6", Kraft C-3259 18 x 12 x 6" EA
$1.82
Corrugated Boxes, 18 x 13 x 5", Kraft, Flat C-3276 18 x 13 x 5" EA
$3.09
Corrugated Boxes, 18 x 14 x 4", Kraft, Flat C-3279 18 x 14 x 4" EA
$1.80
Corrugated Boxes, 18 x 14 x 6", Kraft, Flat C-3281 18 x 14 x 6" EA
$1.93
Corrugated Boxes, 18 x 16 x 2", Kraft, Flat C-3287 18 x 16 x 2" EA
$4.25
Corrugated Boxes, 18 x 16 x 4", Kraft, Flat C-3290 18 x 16 x 4" EA
$2.07
Corrugated Boxes, 18 x 16 x 6", Kraft, Flat C-3293 18 x 16 x 6" EA
$2.27
Corrugated Boxes, 18 x 18 x 2", Kraft, Flat C-3298 18 x 18 x 2" EA
$4.81
Corrugated Boxes, 18 x 18 x 3", Kraft, Flat G-9954 18 x 18 x 3" EA
$4.51
Corrugated Boxes, 18 x 18 x 4", Kraft, Flat C-3297 18 x 18 x 4" EA
$2.38
Corrugated Boxes, 18 x 18 x 5", Kraft, Flat C-3299 18 x 18 x 5" EA
$4.63
Corrugated Boxes, 18 x 18 x 6", Kraft, Flat C-3300 18 x 18 x 6" EA
$2.59
Corrugated Boxes, 19 x 12 x 3", Kraft, Flat C-3648 19 x 12 x 3" EA

Regular Price: $2.71

Special Price $2.05

Corrugated Boxes, 19 x 12 x 4", Kraft, Flat C-3772 19 x 12 x 4" EA
$1.56
Corrugated Boxes, 19 x 13 x 6", Kraft, Flat C-3768 19 x 13 x 6" EA
$3.45
Corrugated Boxes, 20 x 10 x 4", Kraft, Flat C-3769 20 x 10 x 4" EA
$1.29
Corrugated Boxes, 20 x 12 x 3", Kraft, Flat C-3771 20 x 12 x 3" EA
$2.74
Corrugated Boxes, 20 x 12 x 4", Kraft, Flat C-3773 20 x 12 x 4" EA
$1.62
Corrugated Boxes, 20 x 12 x 6", Kraft, Flat C-3779 20 x 12 x 6" EA
$1.80
Corrugated Boxes, 20 x 14 x 3", Kraft, Flat C-3775 20 x 14 x 3" EA
$2.76
Corrugated Boxes, 20 x 14 x 4", Kraft, Flat C-3776 20 x 14 x 4" EA
$1.87
Corrugated Boxes, 20 x 14 x 6", Kraft, Flat C-3693 20 x 14 x 6" EA
$2.13
Corrugated Boxes, 20 x 15 x 6", Kraft, Flat C-3774 20 x 15 x 6" EA
$2.29
Corrugated Boxes, 20 x 16 x 4", Kraft, Flat C-3777 20 x 16 x 4" EA
$2.23
Corrugated Boxes, 20 x 16 x 6", Kraft, Flat C-3782 20 x 16 x 6" EA
$2.40
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Choosing the right sized box for your shipments is really important. If it’s too tight for your products, you’ll risk damaging them in transit, but if it’s too big for them, you’ll waste money on void fill packaging and dimensional weight shipping charges. Flat boxes are the ideal choice for shipping all your shallow products. Using a smaller side wall depth, they encourage the packing of items flat on their backs, helping to evenly distribute weight and reducing the potential overuse of void fill materials. And as a bonus for e-commerce businesses, their lower profile gives them a unique look when compared to standard box choices. That’s a great way to make your shipments, and your business, stand out.
These corrugated boxes are used by plenty of different businesses, for plenty of different reasons. Clothing stores and people who create custom apparel absolutely love the shallow depth and unboxing experience potential. Bookstores and people who deal in rare volumes appreciate being able to ship a book without placing extra pressure on its valuable spine and covers. Photographers and printing houses ship framed and mounted pictures in them, once again for the flat packing style and the unboxing experience they have. Home décor businesses and art stores use these boxes for shipping large and flat items like artwork, mirrors and more.
Don’t forget to use quality packing tape when sealing your boxes closed. There’s nothing worse, packaging-wise, than spending all that time packing and protecting your customer orders, only for its shipping carton to pop open. You can save yourself some time, effort and headaches by ensuring you’ve got all the right things your packaging strategy needs. All our corrugated boxes are sold in bundles and shipped flat for your convenience and storage space. You’ll find the flat boxes your products deserve right here at The Packaging Company.