Products
Mix & match any boxes, mailers & tubes — free freight on $2,500+ ($4,000+ FL, ID, KS, LA, ME, MS, MT, ND, NE, NM, OR, SD, WA, WV, WY)
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Ships in 1–2 days18x18x18 Weather-Resistant Corrugated Boxes (18 x 18 x 18 in), Bundle of 10 STP-181818V3C
Regular price From $208.80From $20.88/box
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Ships in 1–2 days18x18x18 White Corrugated Boxes (18 x 18 x 18 in), Bundle of 20 STP-181818W
Regular price From $98.80From $4.94/box
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Ships in 1–2 days18x18x2 Flat Corrugated Shipping Boxes (18 x 18 x 2 in), Bundle of 25
Regular price From $92.38From $3.33/box
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Ships in 1–2 days18x18x2 Kraft Easy-Fold Mailers (18 x 18 x 2 in), Bundle of 50 STP-M18182BFK
Regular price From $179.60Ships in 1–2 days -
Ships in 1–2 days18x18x2 White Easy-Fold Mailers (18 x 18 x 2 in), Bundle of 50 STP-M18182BF
Regular price From $263.62Ships in 1–2 days -
Ships in 1–2 days18x18x2 White Literature Mailers (18 x 18 x 2 in), Bundle of 25 STP-ML18182
$72.92 per pack of 25($2.92 each)
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Ships in 1–2 days18x18x20 Corrugated Shipping Boxes (18 x 18 x 20 in), Bundle of 15
Regular price From $60.77From $3.65/box
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Ships in 1–2 days18x18x24 Corrugated Shipping Boxes (18 x 18 x 24 in), Bundle of 15
Regular price From $55.46From $3.33/box
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Ships in 1–2 days18x18x24 Deluxe Packing Boxes (18 x 18 x 24 in), Bundle of 15 STP-181824DPB
Regular price From $76.70From $5.11/box
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Ships in 1–2 days18x18x24 Double Wall Boxes (18 x 18 x 24 in), Bundle of 10 STP-HD181824DW
Regular price From $73.44From $7.34/box
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Ships in 1–2 days18x18x28 Corrugated Shipping Boxes (18 x 18 x 28 in), Bundle of 10
Regular price From $49.78From $4.80/box
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Ships in 1–2 days18x18x28 Dish Pack Boxes (18 x 18 x 28 in), Bundle of 5 STP-181828DISH
Regular price From $51.43From $10.29/box
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Ships in 1–2 days18x18x3 Flat Corrugated Shipping Boxes (18 x 18 x 3 in), Bundle of 25
Regular price From $84.24From $3.03/box
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Ships in 1–2 days18x18x30 Tall Corrugated Shipping Boxes (18 x 18 x 30 in), Bundle of 10
Regular price From $65.44From $5.89/box
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Ships in 1–2 days18x18x36 Tall Corrugated Shipping Boxes (18 x 18 x 36 in), Bundle of 10
Regular price From $64.57From $5.81/box
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Ships in 1–2 days18x18x4 Flat Corrugated Shipping Boxes (18 x 18 x 4 in), Bundle of 25
Regular price From $55.34From $2.15/box
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Ships in 1–2 days18x18x40 Telescoping Inner Boxes (18 x 18 x 40 in), Bundle of 10 STP-T181840INNER
Regular price From $143.52From $14.35/box
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Ships in 1–2 days18x18x48 Tall Corrugated Shipping Boxes (18 x 18 x 48 in), Bundle of 10
Regular price From $85.60From $7.70/box
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Ships in 1–2 days18x18x5 Flat Corrugated Shipping Boxes (18 x 18 x 5 in), Bundle of 25
Regular price From $94.38From $3.40/box
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Ships in 1–2 days18x18x6 Double Wall Boxes (18 x 18 x 6 in), Bundle of 15 STP-HD18186DW
Regular price From $86.38From $5.76/box
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Ships in 1–2 days18x18x6 Flat Corrugated Shipping Boxes (18 x 18 x 6 in), Bundle of 20
Regular price From $44.60From $2.01/box
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Ships in 1–2 days18x18x6 Multi-Depth Corrugated Boxes (18 x 18 x 6 in), Bundle of 20 STP-MD18186
Regular price From $54.37From $2.72/box
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Ships in 1–2 days18x18x8 Corrugated Shipping Boxes (18 x 18 x 8 in), Bundle of 25
Regular price From $63.41From $2.50/box
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Ships in 1–2 days18x18x8 Double Wall Boxes (18 x 18 x 8 in), Bundle of 15 STP-HD18188DW
Regular price From $71.02From $4.73/box
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