Custom Poly Bags / Gusseted Poly Bags
A gusseted poly bag expands only where the product needs depth.
Side or bottom gussets let a poly bag open into a deeper shape for bulkier products, grouped parts, textiles or boxed items. The bag stays flat during storage, then expands during packing. This design reduces film use while giving the product the room it needs.
Direct Answer
Specify the expanded depth, not only the flat width.
First, measure the packed product at its widest and deepest points. Next, decide whether the gusset should run along the sides or across the bottom. Then, choose the film gauge, closure and print around the real packing routine.
If the product is flat and rigid, a standard flat bag costs less. If the product needs to stand upright, compare a stand-up pouch or flat-bottom pouch instead.

Gusset Direction
Choose side or bottom expansion from the shape of the packed item.
| Gusset style | How it expands | Useful for |
|---|---|---|
| Side gusset | Opens along one or both sides | Textiles, bundled parts and longer products with added depth |
| Bottom gusset | Expands across the bottom | Boxed items, kits and products that need a wider base |
| Side and bottom gusset | Creates depth in two directions | Bulkier mixed packs and irregular contents |
| Flat bag | No expansion | Flat documents, single panels and thin components |
What to send with the inquiry.
Packed size
Give the finished width, depth and length after packing, plus product weight and any sharp corners.
Closure
Tell us whether the bag uses a lip, adhesive strip, zip closure or a separate tie. The closure changes the usable opening.
Share any logo, barcode, warning or handling copy. Keep important print clear of fold lines when the gusset opens.
Gusseted Bag Questions
What buyers ask before ordering gusseted poly bags
What is a gusseted poly bag?
A gusseted poly bag has folded side or bottom panels that open to create depth. It holds a bulkier product while staying flat for storage before packing.
How do I measure a gusseted bag?
Measure the packed product at its widest and deepest points, then add clearance for loading. Send width, gusset depth and length because the flat dimensions do not show how much the bag expands.
Side gusset or bottom gusset?
Choose a side gusset when the depth runs along the product sides. Choose a bottom gusset when the product needs a wider base. Mixed bulky packs may need both directions.
What film gauge should a gusseted bag use?
First, review product weight and edge sharpness. Then, choose a gauge that resists puncture without adding unnecessary material cost. We confirm the final specification after reviewing the packed item.
Can a gusseted bag include a zipper or handle?
Yes, depending on the structure. A zip can support repeated opening, while a die cut handle helps with heavier retail or field-service kits. We confirm the feature against the bag size and fill method.
Can gusseted poly bags be custom printed?
Yes. We can print the brand, product information, barcode or handling instruction. Artwork should account for the fold lines because the gusset moves when the bag opens.
What is the minimum order for custom gusseted bags?
Minimums depend on dimensions, gauge, closure, print and any added feature. We can review a trial quantity before a larger production order.
Related poly bag routes.
For flat products, review Custom Poly Bags. For industrial components, compare Custom Parts Bags. For mailing soft goods, use Custom Poly Mailing Bags.
Gusseted Bag Requirement
Send the packed dimensions, product weight and required expansion direction.
Include closure, print and handling requirements so the bag can be matched to the real packing process.
Request a Gusseted Bag Quote