18x14x36" 4 Mil Gusseted Poly Bags - Expandable Sides, Case of 100
$117.69
/ case of 100$1.18 per bag
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
18" × 14" × 36"
Board / material
4 Mil
Color
Clear
Freight class
Class 60
Specifications
| Inside dimensions | 18" × 14" × 36" (L × W × H) |
|---|---|
| Board / material | 4 Mil |
| Color | Clear |
| Sold as | Case of 100 |
| Order in multiples of | 100 |
| Case weight | 27.02 lb |
| Outer carton (shipping) | 25.25 × 15.25 × 5.25 in |
| LTL freight class | Class 60 |
| GTIN | 841436044035 |
| SKU | PB1840 |
About this item
SKU PB1840 — 18" × 14" × 36", 4 Mil, Clear. Sold as a case of 100, shipped from US warehouses.
Heavy-duty 4 mil gusseted poly bags with expandable sides and fitted bottom, use for packing irregularly shaped items with confidence.
Gusseted poly bags: Good fit for bulky, irregular, or deep items that need expandable side or bottom space. These poly bags help fulfillment, warehouse, ecommerce, and parts teams choose right-sized bags for storage, kitting, packing, and shipping workflows.
Common questions
Will a boxy or bulky item fit in this 18x14x36" bag?
The listed size is 18x14x36" — the gusseted sides fold out so the bag can open to its listed depth and sit around blockier items. The catalog lists inside-usable dimensions of 36" Height x 18" Width x 14" Gusseted Depth, so that measurement is what your item has to fit within.
Is 4 mil the right thickness for my use?
A mil is one-thousandth of an inch, so 4 mil film is 4/1000" thick — 4 mil film, for example, is twice the film thickness of 2 mil. Heavier film of the same material stands up to punctures and rough handling better; lighter film costs less per bag and packs tighter. This listing's material is specified as 4 Mil Low-Density Polyethylene (LDPE).
Is there a drop-in substitute for PB1840?
Not as an exact replacement. The closest sizes in this line are 16x14x36" and 18x16x40" (same 4 mil film), and the same 18x14x36" size is also stocked in 2 mil. Before switching, match the listed dimensions, 4 mil thickness, and case count — then reorder by exact SKU PB1840.
What do I need to seal these, and what does a full order look like? And can I use them for food?
These are open-top bags — close them with a heat sealer, bag tape, twist ties, or staples, whichever fits your workflow. This listing is sold as one case of 100 bags — roughly $1.18 per bag at the current case price (confirm the live price before ordering). Orders ship from Packrift's five US warehouse regions (Central IL, NE PA, S TX, SE GA, and W CA); delivery options and timing are shown at checkout. On food use: the film is 4 Mil Low-Density Polyethylene (LDPE), a material commonly used in food packaging, and the manufacturer spec sheet for this item lists "Regulatory Compliance: FDA and USDA Approved". Food-contact compliance is still certified per product lot, so check the spec sheet or contact us for lot documentation before direct food contact.
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.