Bellwether Products offers both in stock and custom manfactured flexible packaging materials. Facilities and warehouses across America offer thousands of stock poly bags sizes available for immediate shipping within 24 hours of your order. Custom film types include polyethylene, polypropylene, nylon, polyester, and vinyl. We also offer free freight for orders totaling just $600 or more.
In stock polyethylene bags and films are the perfect blend of technology and source reduction. They are made with 100% renewable energy from sources like wind and solar power. Our product line is fully recyclable, completely non-toxic and performs so well, that you can feel confident using lighter gauge bags.
Polyethylene bags and films were designed in and are exclusively manufactured in the United States under rigorous ISO 9001 production processes that guarantee performance control and uniformity. Product manufacturing yields no pre-consumer waste. We’re proud to offer you a technologically superior product that provides outstanding source reduction benefits.
Finding the correct bag size is a great move for you and the environment. When you buy the size closest to your needs, not only do you save money by purchasing a smaller product, but you are helping to preserve the environment by using less material. Please remember to reuse and recycle our bags. By using less, you actually get more.
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Note: Depth (D) is the shorter of the 2 sides.
- Width (W) of the bag = width of the box + 1”
- Depth (D) of the bag = depth of the box + 1”
- Length (L) of the bag = height of the box + depth + 6” to allow coverage of the box contents.
Example: |
Box: 18”WX12” DX14” H |
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Bag: 19” WX13” DX33” L |
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Note: Depth (D) is the shorter of the 2 sides.
- Width (W) of the bag = width + depth of the container + 2” for a looser fit
- Length (L) of the bag = height of the container + half of the depth to the height. Add 5” for overhang.
Example: |
Container: 14”WX10”DX32”H |
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Bag: 26” WX42” L |
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- Circumference (C) of the container = Diameter (D)X3.14
- Width (W) of the bag = Circumference divided by 2 + 1” for a looser fit.
- Length (L) of the bag = container height + container diameter. Add 5” for overhang.
Example: |
Container: 12”DX30”H |
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20” WX47” L |
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Note: Depth (D) is the shorter of the 2 sides.
- 1. Width (W) of the cover = width of the pallet + 1-2”
- Depth (D) of the cover = depth of the pallet + 1-2”
- Length (L) of the cover = height of the pallet + half of the depth
Example: |
Pallet: 40”WX36”DX50”H |
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Cover: 42” WX38” DX68” L |
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- Measure Length (L) from the bottom of the bag to the base of the reclosable seal.
- Measure Width (W) of the bag from side to side.
- For rigid items, add ½” to the Width (W) of the bag to allow the item to fit through the opening.
- For thick or bulky items adjust dimensions accordingly.
- Add ½” to 2” to both dimensions for a looser fit.
Example: |
For a flat product 3½” wide by 5½” deep, the bag dimensions should measure at least 4” WX6” L. |
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- Measure Length (L) from the bottom of the bag to the bottom of the slider closure.
- Measure Width (W) of the bag from side to side.
- For rigid items, add 1½” to the Width (W) of the bag to allow the item to fit through the opening.
- For thick or bulky items adjust dimensions accordingly. 5. Add ½” to 2” to both dimensions for a looser fit.
Example: |
For a flat product 2½” wide by 5½”deep, the bag dimensions should measure at least 4” WX6” L. |
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