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Ups Boxes - Easy Seal Side Loader …

$2,487.50 / 25 ct

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Boxes - Shipping Boxes - 32 ECT C…

$587.50 / 25 ct

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Corrugated Boxes 24 X 20 X 4", Kraf…

$1,815.00 / 25 ct

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Tall Corrugated Boxes 18 X 18 X …

$1,847.50 / 25 ct

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Corrugated Boxes 32 X 32 X 8", Kraf…

$2,277.50 / 25 ct

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Corrugated Boxes 36 X 24 X 12", Kr…

$1,795.00 / 25 ct

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Corrugated Boxes 28 X 20 X 6", Kraf…

$1,865.00 / 25 ct

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Corrugated Boxes 22 X 16 X 6", Kraf…

$1,750.00 / 25 ct

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Corrugated Boxes 36 X 12 X 4", Kraf…

$1,805.00 / 25 ct

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Corrugated Boxes 30 X 20 X 4", Kraf…

$1,835.00 / 25 ct

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Ups Boxes - Easy Seal Side Loader …

$2,787.50 / 25 ct

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Boxes For Shipping - Corrugated Box…

$525.00 / 25 ct

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Tall Corrugated Boxes 10 X 10 X …

$2,612.50 / 25 ct

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Corrugated Boxes 28 X 18 X 12", Kr…

$1,852.50 / 25 ct

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Corrugated Boxes 40 X 30 X 30", Kr…

$3,635.00 / 25 ct

Tall Corrugated Boxes 6 X 6 X 42"…

$1,843.75 / 25 ct

FOL Side Loading Corrugated Boxe…

$1,875.00 / 25 ct

Lightweight 32 ECT Corrugated Boxe…

$1,020.00 / 25 ct

Lightweight 32 ECT Corrugated Boxe…

$732.50 / 25 ct

Lightweight 32 ECT Corrugated Boxe…

$1,012.50 / 25 ct

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Tall Corrugated Boxes 6 X 6 X 42"…

$1,843.75 / 25 ct

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FOL Side Loading Corrugated Boxe…

$1,875.00 / 25 ct

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Lightweight 32 ECT Corrugated Boxe…

$1,020.00 / 25 ct

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Lightweight 32 ECT Corrugated Boxe…

$732.50 / 25 ct

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Lightweight 32 ECT Corrugated Boxe…

$1,012.50 / 25 ct

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Lightweight 32 ECT Corrugated Boxe…

$1,300.00 / 25 ct

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Lightweight 32 ECT Corrugated Boxe…

$975.00 / 25 ct

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Lightweight 32 ECT Corrugated Boxe…

$1,570.00 / 25 ct

Corrugated Boxes 36 X 36 X 36", Kr…

$2,790.00 / 25 ct

Lightweight 32 ECT Corrugated Boxe…

$962.50 / 25 ct

Lightweight 32 ECT Corrugated Boxe…

$1,456.25 / 25 ct

Lightweight 32 ECT Corrugated Boxe…

$587.50 / 25 ct

Boxes - Corrugated Boxes 14 X 14 X …

$1,075.00 / 25 ct

275 Lb FOL Side Loading Corrugat…

$3,050.00 / 25 ct

Tall Corrugated Boxes 5 X 5 X 60"…

$1,980.00 / 25 ct

Showing 1 - 36 out of 170 results for "usps flat rate boxes sizes"
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  USPS Flat Rate Shipping Box With …
  $78.00
  E
  Etsy
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  12 X 12 X 5.5 USPS Branded Shipp…
  $33.98
  H
  Home Depot
  Free shipping
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  11 X 9 X 6 USPS Branded Shippin…
  $36.98
  H
  Home Depot
  Free shipping
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  12X12X6 USPS FLAT RATE BOX …
  $30.00
  U
  US eBay
  Free shipping
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  (6)
  Usps Brand Recycled Shipping Box…
  $34.14
  W
  Walmart
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  8 X 8 X 8 USPS Branded Shipping …
  $22.98
  H
  Home Depot
  Free shipping
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  USPS Brand Recycled Shipping Bo…
  $40.96
  E
  eBay.com
  Free shipping
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  12.25 X 3 X 17.625 USPS Branded …
  $39.98
  H
  Home Depot
  Free shipping
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  Chaya Cuttings, Deep Lobed Versio…
  $50.00
  E
  eBay
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  White Tab Lock Mailers - Sized For …
  $20.00
  E
  Etsy
11. Saved
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  USPS Priority Mail | USPS Flat Rat…
  $17.99
  E
  Etsy
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  USPS Brand Recycled Shipping Bo…
  $43.53
  E
  eBay.com
  Free shipping
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  USPS Recycled Shipping Boxes, Ad…
  $5.98
  S
  Sam's Club
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  USPS Brand Recycled Shipping Bo…
  $6.83
  J
  jaraza
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  USPS Brand Recycled Shipping Bo…
  $34.14
  U
  USA_Wal
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  United States Post Office White/Blu…
  $59.99
  O
  Office Depot and OfficeMax CJ US
  Free shipping
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  Usps Brand Recycled Shipping Box…
  $43.53
  E
  eBay.com
  Free shipping
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  (1)
  Aviditi White Corrugated Cardboard …
  $105.99
  ($132.49 / 25 ct)
  A
  Amazon.com
  Free shipping
19. Saved
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  Tall Moving & Shipping Boxes 5X5x…
  $58.19
  ($145.62 / 25 ct)
  A
  Amazon.com
  Free shipping
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  (29)
  IDL Packaging - B-12128-5 Small C…
  $36.95
  ($184.75 / 25 ct)
  A
  Amazon.com
  Free shipping
21. Saved
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  (19)
  BOX USA Flat Mailer Shipping Boxe…
  $82.99
  ($41.45 / 25 ct)
  A
  Amazon.com
  Free shipping
22. Saved
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  Used
  USPS Medium Flat Rate Box Estat…
  $29.50
  E
  eBay.com
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  (1K+)
  USPS Priority Mail | USPS Flat Rat…
  $5.00
  E
  Etsy
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  (56)
  Poever Shipping-Boxes-11X6x6 Inc…
  $29.99
  ($18.75 / 25 ct)
  A
  Amazon.com
25. Saved
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  Usps Priority Mail Shipping Box | Co…
  $6.00
  P
  Poshmark
26. Saved
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  Medium Moving & Shipping Boxes 1…
  $49.95
  ($249.75 / 25 ct)
  A
  Amazon.com
  Free shipping
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  Used
  Usps Priority Mail Legal Flat Rate E…
  $9.99
  E
  eBay.com
  Free shipping
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  (4)
  United States Post Office Fold Over …
  $6.49
  O
  Office Depot
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  Usps Priority Mail Box | Color: Red/…
  $20.00
  $65.00
  P
  Poshmark
  SALE
30. Saved
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  Medium And Large Flat Rate USPS …
  $19.00
  E
  Etsy
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  Tall Moving & Shipping Boxes 6 X …
  $49.49
  ($247.45 / 25 ct)
  A
  Amazon.com
  Free shipping
32. Saved
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  USPS BOXES LARGE -Packing Shi…
  $17.99
  E
  eBay.com
  Free shipping
33. Saved
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  IDL Packaging Medium Corrugated …
  $81.95
  ($409.75 / 25 ct)
  A
  Amazon.com
  Free shipping
34. Saved
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  USPS Priority Mail Small Box | Upgr…
  $9.50
  E
  Etsy
  Free shipping
35. Saved
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  12X12X6 Usps Flat Rate BOX OF E…
  $30.00
  E
  eBay.com
36. Saved
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  BOX USA Shipping Boxes Flat 14"…
  $37.99
  ($38.01 / 25 ct)
  A
  Amazon.com
  Free shipping
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Ups Box Sizes - Easy Seal Side L…
$85.00
$2,125.00 / 25 ct
Uline
Corrugated Boxes 24 X 18 X 3", Kraf…
$79.25
$1,981.25 / 25 ct
Uline
Lightweight 32 ECT Corrugated Boxe…
$36.75
$918.75 / 25 ct
Uline
Lightweight 32 ECT Corrugated Boxe…
$38.75
$968.75 / 25 ct
Uline
Corrugated Boxes 48 X 24 X 12", Kr…
$97.60
$2,440.00 / 25 ct
Uline
Lightweight 32 ECT Corrugated Boxe…
$20.50
$512.50 / 25 ct
Uline
Lightweight 32 ECT Corrugated Boxe…
$34.75
$868.75 / 25 ct
Uline
Corrugated Boxes 24 X 18 X 12", Kr…
$28.60
$715.00 / 25 ct
Uline
Lightweight 32 ECT Corrugated Boxe…
$45.60
$1,140.00 / 25 ct
Uline
Corrugated Boxes 24 X 10 X 4", Kraf…
$43.25
$1,081.25 / 25 ct
Uline
Corrugated Boxes 36 X 24 X 20", Kr…
$39.80
$995.00 / 25 ct
Uline
Corrugated Boxes 48 X 24 X 8", Kraf…
$100.30
$2,507.50 / 25 ct
Uline
Corrugated Boxes 30 X 24 X 20", Kr…
$73.20
$1,830.00 / 25 ct
Uline
520+ viewed
Tall Corrugated Boxes 24 X 24 X …
$106.70
$2,667.50 / 25 ct
Uline
Corrugated Boxes 20 X 20 X 12", Kr…
$40.95
$1,023.75 / 25 ct
Uline
Corrugated Boxes 26 X 26 X 8", Kraf…
$57.90
$1,447.50 / 25 ct
Uline
Lightweight 32 ECT Corrugated Boxe…
$23.00
$575.00 / 25 ct
Uline
Corrugated Boxes 28 X 24 X 6", Kraf…
$53.20
$1,330.00 / 25 ct
Uline
Lightweight 32 ECT Corrugated Boxe…
$33.50
$837.50 / 25 ct
Uline
Corrugated Boxes 12 X 8 X 4", Kraft …
$26.25
$656.25 / 25 ct
Uline
- The Official USPS® Website | USPS® Mail & Shipping Supplies
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- Flat Rate Box Sizes | In Stock – Ships Today | Fast Delivery
  https://www.uline.com › Uline › Boxes
  SponsoredUline's version of UPS Next Day Air®, FedEx Express® and USPS Priority Mail boxes. Assembles easily without glue or tape. Adhesive strips on both ends. Ships flat.
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