18x16x40" 4 Mil Gusseted Poly Bags - Expandable Sides, Case of 100

$111.73
/ case of 100$1.12 per bag
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
18" × 16" × 40"
Board / material
4 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 18" × 16" × 40" (L × W × H) |
|---|---|
| Board / material | 4 Mil |
| Color | Clear |
| Sold as | Case of 100 |
| Order in multiples of | 100 |
| Case weight | 31.42 lb |
| Outer carton (shipping) | 20.0 × 14.5 × 6.75 in |
| LTL freight class | Class 60 |
| GTIN | 841436097918 |
| SKU | PB1845 |
About this item
SKU PB1845 — 18" × 16" × 40", 4 Mil, Clear. Sold as a case of 100, shipped from US warehouses.
Common questions
What does '4 mil' thickness mean, and why does it matter?
4 mil (0.004 inches) is the polyethylene film thickness. This gauge provides excellent puncture and tear resistance for industrial shipping while remaining cost-effective for single-use applications. It's the industry standard for products requiring durability without premium pricing.
Are these bags FDA and USDA approved for food storage?
Yes, these 4 mil gusseted poly bags meet FDA and USDA specifications, making them suitable for food contact applications. They provide a moisture and contamination barrier ideal for food distribution, storage, and retail display.
How do gusseted sides help with packing efficiency?
The gusseted construction (16" expandable sides) allows the bag to conform to the shape and size of your product without excessive material waste. This means you pack tighter, ship more units per pallet, reduce dimensional weight charges, and lower overall logistics costs.
What's the best way to seal these bags, and do you sell the supplies?
Choose from three closure methods: Twist Ties (quick, reusable, cost-effective), Bag Tape (permanent, tamper-evident), or Impulse Sealers (high-volume, professional finish). All supplies are available separately, shop our Closures & Sealing section to optimize for your workflow.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.



