Flat Poly Bags: Green Sizes and Case Quantities

Choose a flat poly bag by its listed width and length, the space your packed item needs, and the number of bags in the order unit. The three green bags below are all listed as 2 mil, but they differ in size and case quantity. The smallest comes in a 1,000-bag case; the two larger options come in 100-bag cases.

Use this shortlist when you need a green flat bag and can specify the closure separately. If the job needs an integral reclosable track, compare the reclosable and flat bag workflows before choosing a size.

Three green flat bags to compare

The 4 × 6, 8 × 10, and 12 × 15 measurements describe the listed flat bag sizes. They are not three-dimensional box capacities. An item's thickness takes up some of the bag's flat width and length when the material wraps around it. The closure also needs space that cannot be assigned to the product.

Shortlist size before comparing case quantities

Measure the complete item or group of items as it will enter the bag. Include any card, insert, or inner wrap. Identify which edge enters the opening, then check a sample of the candidate size with the intended closure. A wide, thin item and a narrower, thicker item can require different bags even when their largest dimensions look similar.

PB390G is the smallest listed option in this comparison. PB465G100PK offers a larger 8 × 10-inch format, while PB534G100PK is the largest at 12 × 15 inches. Move between them because the assembled contents and closure fit, rather than because another case quantity is more convenient.

The PB390G product description names twist ties, bag tape, and impulse sealing as closure approaches. Choose and verify the method for the exact bag and your process. A separate closure supply or sealer is a separate purchasing decision; these three listings are for bags.

Worked order: three sizes, three calculations

Suppose your approved packing specification calls for 750 PB390G bags, 250 PB465G100PK bags, and 80 PB534G100PK bags. This hypothetical order uses one bag per packed unit and excludes any additional allowance.

The requirement is 1,080 bags. Five cases supply 1,400 bags, leaving 320 distributed across three sizes. Adding the bag requirement first and dividing by a single case quantity would give the wrong order because the three cases are not interchangeable.

Keep thickness and quantity in the specification

Two mil equals 0.002 inch, or 50.8 micrometres. That conversion explains the thickness unit; it does not establish a load capacity or make different sizes equivalent. Keep the SKU, listed dimensions, green color, thickness, closure method, and bags-per-case figure together on your purchasing record.

When comparing current quotations, divide each quoted case amount by its stated bag count to obtain a per-bag figure. Compare that figure only after the bag has met the job's size and closure requirements. Also retain the whole-case total, since that is the quantity you are actually ordering.

Open the linked product that matches your specification, or request a quote with the three SKU quantities listed separately. Use the poly bag size chart when the required dimensions fall outside this green-bag shortlist.