In Stock SKU: PB1381

8 x 4 x 21" 1 Mil Gusseted Poly Bags - Expandable Sides, Case of 1000

Pack irregularly-shaped products with ease using these 8 x 4 x 21" gusseted poly bags featuring expandable sides and fitted bottom. Made from durable 1 mil LDPE plastic and FDA/USDA compliant for food storage. Sold by the case of 1,000 bags.

$64.92 / CASE (1000 PER CASE)
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UPS Eligible — Ground & Freight
Confirm this specSKU PB1381
Size
8 x 4 x 21 in
Material
1 Mil
Color
Clear
Sold as
CASE (1000 PER CASE)
Freight class
60
Material
1 Mil LDPE Polyethylene
Dimensions (Inside Usable Space)
21" H x 8" W x 4" Gusseted Depth
Color
Clear
Good fit for

Industrial packaging buyers needing reliable, cost-effective storage and shipping solutions for irregularly shaped items will appreciate these 8 x 4 x 21" gusseted poly bags. The expandable side gussets and fitted bottom accommodate bulkier products while maintaining a professional, protective seal, making them ideal for food packaging, retail goods, and e-commerce fulfillment.

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Confirm width, length, mil thickness, closure style, and case quantity.

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Best For

Industrial packaging buyers needing reliable, cost-effective storage and shipping solutions for irregularly shaped items will appreciate these 8 x 4 x 21" gusseted poly bags. The expandable side gussets and fitted bottom accommodate bulkier products while maintaining a professional, protective seal, making them ideal for food packaging, retail goods, and e-commerce fulfillment.

How to Choose the Right Packaging

1 mil polyethylene construction provides optimal durability-to-cost balance for industrial applications while meeting FDA and USDA compliance standards. Gusseted design expands to fit oversized items without sacrificing protection, and the clear material allows end-users to identify contents instantly, reducing handling time and customer inquiries.

Specs at a Glance

Material1 Mil LDPE Polyethylene
Dimensions (Inside Usable Space)21" H x 8" W x 4" Gusseted Depth
ColorClear
Packaging FormatCase of 1000 Bags
RecyclableYes
Common Use Cases
  • Food packaging and storage with FDA/USDA compliance E-commerce fulfillment for shaped retail products Industrial parts storage and organization Bakery, candy, and snack product packaging Goodie bags and promotional product giveaways
What You'll Receive
  • 1000 gusseted poly bags per case (8 x 4 x 21") Ready-to-use clear plastic bags with expandable sides
Shipping & Packaging

Ships in standard carton packaging designed for efficient warehouse storage and handling. Bulk case format reduces per-unit shipping costs and minimizes order frequency, lowering total landed cost for high-volume industrial users.

Frequently Bought Together

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Frequently Asked Questions

1 mil (0.001") polyethylene provides a balance between strength and cost-efficiency. It's durable enough for shipping, storage, and handling without puncturing, while keeping per-bag expenses competitive for bulk purchasing.

Yes. These bags meet FDA and USDA specifications, making them safe for direct food contact including baked goods, snacks, candy, and other consumables without additional lining required.

Choose from three sealing methods: twist ties for quick closure, bag tape for secure tamper-evident sealing, or impulse sealers for high-volume, heat sealing. All options are available through Packrift.

Gusseted designs expand to accommodate irregularly shaped items without tearing or overstuffing, reducing product damage and returns. The fitted bottom provides stability during storage and shipping, improving operational efficiency for your fulfillment process.

Technical Specifications

Material1 Mil LDPE Polyethylene
Dimensions (Inside Usable Space)21" H x 8" W x 4" Gusseted Depth
ColorClear
Packaging FormatCase of 1000 Bags
RecyclableYes
Color Clear
Strength / Material 1 Mil
Dimensions (Internal) 8"" × 4"" × 21"" (L × W × H)

Product Downloads

Shipping Information

Outer Carton Dimensions

12.0" × 9.0" × 8.75" (L × W × D)

Unit of Measure

CASE

Qty Per Shipping Unit

1000 PER CASE

LTL Freight Class

Class 60

Carrier Eligibility

UPS Ground & Freight Eligible

TRUST & RELIABILITY

Product Support

We aim to show product specs, case quantities, and availability clearly. Contact support if an item does not match the listed product details.

Secure checkout LTL freight available on case/skid orders