Flat Corrugated Boxes

Flat corrugated boxes are designed with low-profile depths to provide the perfect fit for slim or shallow products. Manufactured from durable ECT-32 kraft corrugated, these cartons help minimize excess space, reduce shipping costs, and protect your goods during transit.

Best for:
📚 Books, documents, artwork, mirrors, apparel
📏 Shallow or flat items that need snug, efficient packaging
🚛 Shipping with reduced dimensional weight charges

Sold flat in bundle quantities to maximize storage and shipping efficiency. A go-to solution for clean, professional presentation and protection.

18" x 12" x 4" Corrugated Boxes

As low as $31.62

BX32-UZ4

Description

Quantity: 25/Bundle
Width: 12 Inches
Length: 18 Inches
Height: 4 Inches
Box Type: Flat Boxes
Weight (lbs): 18.04
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $31.62
Buy 3 - 4:$36.90/ea
Buy 5 - 9:$36.31/ea
Buy 10 - 24:$33.09/ea
Buy 25+:$31.62/ea

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18" x 12" x 5" Corrugated Boxes

As low as $38.71

BX32-VA4

Description

Quantity: 25/Bundle
Width: 12 Inches
Length: 18 Inches
Height: 5 Inches
Box Type: Flat Boxes
Weight (lbs): 18.42
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $38.71
Buy 3 - 4:$45.73/ea
Buy 5 - 9:$43.68/ea
Buy 10 - 24:$40.98/ea
Buy 25+:$38.71/ea

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18" x 12" x 6" Corrugated Boxes

As low as $33.86

BX32-VB4

Description

Quantity: 25/Bundle
Width: 12 Inches
Length: 18 Inches
Height: 6 Inches
Box Type: Flat Boxes
Weight (lbs): 18.88
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $33.86
Buy 3 - 4:$39.21/ea
Buy 5 - 9:$38.68/ea
Buy 10 - 24:$34.34/ea
Buy 25+:$33.86/ea

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18" x 14" x 4" Corrugated Boxes

As low as $37.58

BX32-VS4

Description

Quantity: 25/Bundle
Width: 14 Inches
Length: 18 Inches
Height: 4 Inches
Box Type: Flat Boxes
Weight (lbs): 19.7
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $37.58
Buy 3 - 4:$43.52/ea
Buy 5 - 9:$42.94/ea
Buy 10 - 24:$38.11/ea
Buy 25+:$37.58/ea

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18" x 14" x 6" Corrugated Boxes

As low as $41.57

BX32-VT4

Description

Quantity: 25/Bundle
Width: 14 Inches
Length: 18 Inches
Height: 6 Inches
Box Type: Flat Boxes
Weight (lbs): 22.8
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $41.57
Buy 3 - 4:$48.15/ea
Buy 5 - 9:$47.50/ea
Buy 10 - 24:$42.16/ea
Buy 25+:$41.57/ea

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18" x 16" x 4" Corrugated Boxes

As low as $43.63

BX32-WB4

Description

Quantity: 25/Bundle
Width: 16 Inches
Length: 18 Inches
Height: 4 Inches
Box Type: Flat Boxes
Weight (lbs): 24.68
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $43.63
Buy 3 - 4:$52.00/ea
Buy 5 - 9:$50.83/ea
Buy 10 - 24:$49.65/ea
Buy 25+:$43.63/ea

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18" x 16" x 6" Corrugated Boxes

As low as $48.36

BX32-WC4

Description

Quantity: 25/Bundle
Width: 16 Inches
Length: 18 Inches
Height: 6 Inches
Box Type: Flat Boxes
Weight (lbs): 28.15
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $48.36
Buy 3 - 4:$56.00/ea
Buy 5 - 9:$55.25/ea
Buy 10 - 24:$49.04/ea
Buy 25+:$48.36/ea

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18" x 18" x 4" Corrugated Boxes

As low as $51.13

BX32-WI4

Description

Quantity: 25/Bundle
Width: 18 Inches
Length: 18 Inches
Height: 4 Inches
Box Type: Flat Boxes
Weight (lbs): 30.5
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $51.13
Buy 3 - 4:$59.22/ea
Buy 5 - 9:$58.42/ea
Buy 10 - 24:$51.85/ea
Buy 25+:$51.13/ea

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18" x 18" x 6" Corrugated Boxes

As low as $40.15

BX32-WJ4

Description

Quantity: 20/Bundle
Width: 18 Inches
Length: 18 Inches
Height: 6 Inches
Box Type: Flat Boxes
Weight (lbs): 25.96
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $40.15
Buy 3 - 4:$46.49/ea
Buy 5 - 9:$45.87/ea
Buy 10 - 24:$45.24/ea
Buy 25+:$40.15/ea

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19" x 12" x 4" Corrugated Boxes

As low as $35.36

BX32-XN4

Description

Quantity: 25/Bundle
Width: 12 Inches
Length: 19 Inches
Height: 4 Inches
Box Type: Flat Boxes
Weight (lbs): 17.5
Material: 32 ECT / 200# EQ
Color: Kraft
Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable

Regular Price $35.36
Buy 3 - 4:$40.08/ea
Buy 5 - 9:$39.54/ea
Buy 10 - 24:$36.07/ea
Buy 25+:$35.36/ea

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SKU	Name	Length	Width	Height	Box Type	Material	Color	Quantity	Price
BX32-UZ4	18" x 12" x 4" Corrugated Boxes	18 Inches	12 Inches	4 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $31.62
Width: 12 Inches Length: 18 Inches Height: 4 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 18.04 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $37.49 Buy 1 - 2:$37.49/ea Buy 3 - 4:$36.90/ea Buy 5 - 9:$36.31/ea Buy 10 - 24:$33.09/ea Buy 25+:$31.62/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-VA4	18" x 12" x 5" Corrugated Boxes	18 Inches	12 Inches	5 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $38.71
Width: 12 Inches Length: 18 Inches Height: 5 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 18.42 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $47.78 Buy 1 - 2:$47.78/ea Buy 3 - 4:$45.73/ea Buy 5 - 9:$43.68/ea Buy 10 - 24:$40.98/ea Buy 25+:$38.71/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-VB4	18" x 12" x 6" Corrugated Boxes	18 Inches	12 Inches	6 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $33.86
Width: 12 Inches Length: 18 Inches Height: 6 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 18.88 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $39.74 Buy 1 - 2:$39.74/ea Buy 3 - 4:$39.21/ea Buy 5 - 9:$38.68/ea Buy 10 - 24:$34.34/ea Buy 25+:$33.86/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-VS4	18" x 14" x 4" Corrugated Boxes	18 Inches	14 Inches	4 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $37.58
Width: 14 Inches Length: 18 Inches Height: 4 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 19.7 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $44.11 Buy 1 - 2:$44.11/ea Buy 3 - 4:$43.52/ea Buy 5 - 9:$42.94/ea Buy 10 - 24:$38.11/ea Buy 25+:$37.58/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-VT4	18" x 14" x 6" Corrugated Boxes	18 Inches	14 Inches	6 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $41.57
Width: 14 Inches Length: 18 Inches Height: 6 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 22.8 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $48.80 Buy 1 - 2:$48.80/ea Buy 3 - 4:$48.15/ea Buy 5 - 9:$47.50/ea Buy 10 - 24:$42.16/ea Buy 25+:$41.57/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-WB4	18" x 16" x 4" Corrugated Boxes	18 Inches	16 Inches	4 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $43.63
Width: 16 Inches Length: 18 Inches Height: 4 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 24.68 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $53.17 Buy 1 - 2:$53.17/ea Buy 3 - 4:$52.00/ea Buy 5 - 9:$50.83/ea Buy 10 - 24:$49.65/ea Buy 25+:$43.63/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-WC4	18" x 16" x 6" Corrugated Boxes	18 Inches	16 Inches	6 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $48.36
Width: 16 Inches Length: 18 Inches Height: 6 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 28.15 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $56.76 Buy 1 - 2:$56.76/ea Buy 3 - 4:$56.00/ea Buy 5 - 9:$55.25/ea Buy 10 - 24:$49.04/ea Buy 25+:$48.36/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-WI4	18" x 18" x 4" Corrugated Boxes	18 Inches	18 Inches	4 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $51.13
Width: 18 Inches Length: 18 Inches Height: 4 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 30.5 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $60.02 Buy 1 - 2:$60.02/ea Buy 3 - 4:$59.22/ea Buy 5 - 9:$58.42/ea Buy 10 - 24:$51.85/ea Buy 25+:$51.13/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-WJ4	18" x 18" x 6" Corrugated Boxes	18 Inches	18 Inches	6 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	20/Bundle	As low as $40.15
Width: 18 Inches Length: 18 Inches Height: 6 Inches Quantity: 20/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 25.96 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $47.12 Buy 1 - 2:$47.12/ea Buy 3 - 4:$46.49/ea Buy 5 - 9:$45.87/ea Buy 10 - 24:$45.24/ea Buy 25+:$40.15/ea Product added to cart successfully! REQUEST FREE SAMPLE
BX32-XN4	19" x 12" x 4" Corrugated Boxes	19 Inches	12 Inches	4 Inches	Flat Boxes	32 ECT / 200# EQ	Kraft	25/Bundle	As low as $35.36
Width: 12 Inches Length: 19 Inches Height: 4 Inches Quantity: 25/Bundle Material: 32 ECT / 200# EQ Box Type: Flat Boxes Weight: 17.5 Color: Kraft Product Properties: Industrial, Food, Retail, Kraft, Cardboard, Recyclable View Item Regular Price $40.62 Buy 1 - 2:$40.62/ea Buy 3 - 4:$40.08/ea Buy 5 - 9:$39.54/ea Buy 10 - 24:$36.07/ea Buy 25+:$35.36/ea Product added to cart successfully! REQUEST FREE SAMPLE