Flat Poly Bags 20″ x 42″ 4 mil 200/CTN

Window Blind & Interior Shade Bags — 20″ x 42″ / 4 Mil LDPE / 200 per Carton

These 20″ x 42″ flat poly bags are sized for long, flat products that require heavy-duty protection during distribution — window blinds, interior shades, horizontal louver blinds, and similar packaged goods. The 4 mil gauge handles the rigid mounting brackets, cord hardware, and sharp headrail edges common in blind and shade packaging without puncturing on the outer bag. The 20″ width and 42″ length accommodate most standard residential and commercial blind sizes up to 36″ drop.

Specs: 20″ x 42″ | 4 Mil | LDPE | 200/CTN | FDA/USDA Compliant

Applications

Window blind and horizontal shade packaging, louver and roller shade protection, architectural millwork and trim bag, flat art canvas and print protection, automotive door panel sleeving, large panel board shipping bags, banner and sign roll protection, construction material flat-pack bags.

Features

• 4 mil LDPE — industrial gauge for products with sharp hardware, brackets, or rigid edges
• 20″ width accommodates standard residential blind widths through 18–20″
• 42″ length handles blind drops through 36″ with adequate overhang for closure
• Heat sealable, tie-close, staple, or tape closure options
• Strong bottom seal or side weld construction for full product weight
• 200/CTN — pallet-friendly case count for distribution center operations

Material Notes

Manufactured from 100% virgin LDPE (Low-Density Polyethylene) resin meeting FDA/USDA specifications. 4 mil gauge provides the balance of flexibility and puncture resistance needed for products with rigid, sharp-edged components. All listed gauges are nominal.

Use Case Notes

Window blinds up to 20″ wide and 36″ drop fit with margin for easy loading and closure. For longer blind sizes (48″ or 72″ drops), consider the deeper bag dimension or poly tubing for custom-length coverage. At 4 mil, this bag handles the steel headrail and mounting clips common in metal blinds without the puncture issues seen in 2 mil bags on the same product. For retail distribution, the bag provides dust and moisture protection through the supply chain from manufacturer to installer.

Common Questions

What blind sizes fit in a 20×42 bag?
Most residential horizontal blinds up to 20″ wide and 36″ drop fit comfortably with room for closure. For wider or longer blinds, measure your folded/rolled product dimensions before ordering.

Is 4 mil necessary for blind packaging?
For blinds with metal headrails, mounting brackets, and pull cords, 4 mil provides reliable puncture resistance. Lighter gauges may work for plastic-only blinds without exposed hardware.

Is this bag FDA compliant?
Yes. Made from 100% virgin LDPE resin meeting FDA/USDA specifications for food contact applications.

Why Buy

The 20×42 / 4 mil flat bag is sized for a specific gap in the window covering supply chain — wide enough for standard blinds, long enough for 36″ drops, and heavy enough to handle sharp mounting hardware without failure. The 200-count carton is a practical order unit for distribution operations that cycle through blind packaging volume.