4 Mil Poly Bags
Clear 4 mil flat poly bags, open on one end, in sizes from 2 x 3 in to 60 x 60 in. Each row lists bags per case, the case price, the price per bag, the case weight and stock, and adds one case to your cart. The tables are grouped by the bag's short side.
| Size in inches | Bags per case | Price per case | Price per bag | Case weight | Stock | Order |
|---|---|---|---|---|---|---|
| 2 x 3 | 1,000 | $7.45 | 0.75¢ | 1.8 lb | In stock | |
| 4 x 2 | 1,000 | $9.71 | 0.97¢ | 2.2 lb | In stock | |
| 2 x 5 | 1,000 | $14.09 | 1.4¢ | 2.86 lb | In stock | |
| 2 x 6 | 1,000 | $13.97 | 1.4¢ | 3.26 lb | In stock | |
| 2 x 8 | 1,000 | $18.55 | 1.9¢ | 4.48 lb | In stock | |
| 9 x 2 | 1,000 | $48.92 | 4.9¢ | 4.56 lb | In stock | |
| 16 x 2 | 1,000 | $42.95 | 4.3¢ | 8.8 lb | In stock | |
| 18 x 2 | 1,000 | $54.05 | 5.4¢ | 9.8 lb | In stock | |
| 2 x 24 | 1,000 | $69.64 | 7.0¢ | 13.04 lb | In stock | |
| 3 x 3 | 1,000 | $10.69 | 1.1¢ | 2.56 lb | In stock | |
| 3 x 4 | 1,000 | $13.96 | 1.4¢ | 3.32 lb | In stock | |
| 3 x 5 | 1,000 | $17.43 | 1.7¢ | 4.32 lb | In stock | |
| 3 x 6 | 1,000 | $20.88 | 2.1¢ | 4.9 lb | In stock | |
| 3 x 7 | 1,000 | $28.99 | 2.9¢ | 5.72 lb | In stock | |
| 3 x 8 | 1,000 | $25.83 | 2.6¢ | 6.26 lb | In stock | |
| 3 x 9 | 1,000 | $35.06 | 3.5¢ | 7.48 lb | In stock | |
| 3 x 10 | 1,000 | $33.24 | 3.3¢ | 8.22 lb | In stock | |
| 3 x 12 | 1,000 | $39.77 | 4.0¢ | 10.0 lb | In stock | |
| 3 x 14 | 1,000 | $52.99 | 5.3¢ | 11.86 lb | In stock | |
| 3 x 16 | 1,000 | $58.21 | 5.8¢ | 12.76 lb | In stock | |
| 3 x 18 | 1,000 | $57.47 | 5.7¢ | 14.84 lb | In stock | |
| 3 x 24 | 1,000 | $84.53 | 8.5¢ | 19.44 lb | In stock | |
| 3 x 26 | 1,000 | $105.68 | 10.6¢ | 20.8 lb | In stock | |
| 30 x 3 | 1,000 | $125.16 | 12.5¢ | 24.16 lb | In stock | |
| 3 x 36 | 1,000 | $117.92 | 11.8¢ | 28.32 lb | In stock | |
| 4 x 4 | 1,000 | $18.73 | 1.9¢ | 4.42 lb | In stock | |
| 4 x 6 | 1,000 | $26.53 | 2.7¢ | 6.46 lb | In stock | |
| 4 x 7 | 1,000 | $30.84 | 3.1¢ | 7.74 lb | In stock | |
| 4 x 8 | 1,000 | $35.41 | 3.5¢ | 8.7 lb | In stock | |
| 4 x 10 | 1,000 | $44.02 | 4.4¢ | 11.12 lb | In stock | |
| 4 x 12 | 1,000 | $50.51 | 5.1¢ | 13.2 lb | In stock | |
| 4 x 16 | 1,000 | $78.22 | 7.8¢ | 17.44 lb | In stock | |
| 4 x 18 | 1,000 | $73.61 | 7.4¢ | 19.44 lb | In stock | |
| 20 x 4 | 1,000 | $81.63 | 8.2¢ | 21.9 lb | In stock | |
| 4 x 24 | 1,000 | $96.29 | 9.6¢ | 25.46 lb | In stock | |
| 36 x 4 | 1,000 | $175.63 | 17.6¢ | 39.06 lb | In stock | |
| 4 x 52 | 1,000 | $284.09 | 28.4¢ | 55.14 lb | In stock |
| Size in inches | Bags per case | Price per case | Price per bag | Case weight | Stock | Order |
|---|---|---|---|---|---|---|
| 5 x 5 | 1,000 | $27.70 | 2.8¢ | 6.8 lb | In stock | |
| 5 x 6 | 1,000 | $33.12 | 3.3¢ | 8.14 lb | In stock | |
| 5 x 7 | 1,000 | $38.88 | 3.9¢ | 9.28 lb | In stock | |
| 5 x 8 | 1,000 | $44.28 | 4.4¢ | 10.76 lb | In stock | |
| 5 x 9 | 1,000 | $55.29 | 5.5¢ | 12.22 lb | In stock | |
| 5 x 10 | 1,000 | $53.34 | 5.3¢ | 13.34 lb | In stock | |
| 5 x 12 | 1,000 | $63.41 | 6.3¢ | 16.28 lb | In stock | |
| 5 x 15 | 1,000 | $101.32 | 10.1¢ | 20.28 lb | In stock | |
| 5 x 20 | 1,000 | $111.38 | 11.1¢ | 28.24 lb | In stock | |
| 5 x 24 | 1,000 | $143.49 | 14.3¢ | 32.44 lb | In stock | |
| 5 x 28 | 1,000 | $143.52 | 14.4¢ | 37.64 lb | In stock | |
| 5 x 30 | 1,000 | $177.80 | 17.8¢ | 39.94 lb | In stock | |
| 6 x 6 | 1,000 | $39.83 | 4.0¢ | 9.92 lb | In stock | |
| 6 x 7 | 1,000 | $44.78 | 4.5¢ | 11.32 lb | In stock | |
| 6 x 8 | 1,000 | $51.14 | 5.1¢ | 13.18 lb | In stock | |
| 6 x 9 | 1,000 | $57.38 | 5.7¢ | 14.48 lb | In stock | |
| 6 x 10 | 1,000 | $63.23 | 6.3¢ | 16.18 lb | In stock | |
| 6 x 12 | 1,000 | $76.06 | 7.6¢ | 19.22 lb | In stock | |
| 6 x 14 | 1,000 | $88.50 | 8.9¢ | 22.42 lb | In stock | |
| 6 x 15 | 1,000 | $98.94 | 9.9¢ | 23.82 lb | In stock | |
| 6 x 18 | 1,000 | $138.85 | 13.9¢ | 29.84 lb | In stock | |
| 6 x 20 | 1,000 | $145.11 | 14.5¢ | 32.24 lb | In stock | |
| 6 x 24 | 1,000 | $186.81 | 18.7¢ | 39.14 lb | In stock | |
| 6 x 28 | 1,000 | $177.80 | 17.8¢ | 44.78 lb | In stock | |
| 6 x 36 | 1,000 | $253.69 | 25.4¢ | 57.72 lb | In stock |
| Size in inches | Bags per case | Price per case | Price per bag | Case weight | Stock | Order |
|---|---|---|---|---|---|---|
| 7 x 9 | 1,000 | $77.39 | 7.7¢ | 17.2 lb | In stock | |
| 7 x 10 | 1,000 | $101.58 | 10.2¢ | 19.08 lb | In stock | |
| 7 x 12 | 1,000 | $123.45 | 12.3¢ | 22.4 lb | In stock | |
| 7 x 14 | 1,000 | $122.07 | 12.2¢ | 24.58 lb | In stock | |
| 7 x 15 | 1,000 | $122.59 | 12.3¢ | 28.0 lb | In stock | |
| 7 x 18 | 1,000 | $132.25 | 13.2¢ | 34.2 lb | In stock | |
| 7 x 20 | 1,000 | $151.79 | 15.2¢ | 37.52 lb | In stock | |
| 7 x 30 | 500 | $116.70 | 23.3¢ | 28.56 lb | In stock | |
| 8 x 8 | 1,000 | $66.25 | 6.6¢ | 17.28 lb | In stock | |
| 8 x 9 | 1,000 | $84.56 | 8.5¢ | 17.04 lb | In stock | |
| 8 x 10 | 1,000 | $96.07 | 9.6¢ | 21.0 lb | In stock | |
| 8 x 12 | 1,000 | $127.06 | 12.7¢ | 25.8 lb | In stock | |
| 8 x 15 | 1,000 | $147.62 | 14.8¢ | 32.02 lb | In stock | |
| 8 x 18 | 500 | $93.52 | 18.7¢ | 19.6 lb | In stock | |
| 8 x 20 | 500 | $108.34 | 21.7¢ | 21.5 lb | In stock | |
| 8 x 24 | 500 | $118.74 | 23.7¢ | 26.26 lb | In stock | |
| 8 x 28 | 500 | $121.43 | 24.3¢ | 29.56 lb | In stock | |
| 8 x 30 | 500 | $130.10 | 26.0¢ | 33.16 lb | In stock | |
| 8 x 36 | 500 | $152.87 | 30.6¢ | 38.5 lb | In stock | |
| 8 x 40 | 500 | $164.79 | 33.0¢ | 41.0 lb | In stock | |
| 9 x 9 | 1,000 | $88.91 | 8.9¢ | 22.08 lb | In stock | |
| 9 x 10 | 1,000 | $96.49 | 9.6¢ | 24.04 lb | In stock | |
| 9 x 12 | 1,000 | $130.60 | 13.1¢ | 29.2 lb | In stock | |
| 9 x 15 | 1,000 | $155.12 | 15.5¢ | 36.88 lb | In stock | |
| 9 x 18 | 500 | $105.52 | 21.1¢ | 22.04 lb | In stock | |
| 9 x 20 | 500 | $88.20 | 17.6¢ | 23.96 lb | In stock |
| Size in inches | Bags per case | Price per case | Price per bag | Case weight | Stock | Order |
|---|---|---|---|---|---|---|
| 10 x 10 | 1,000 | $137.38 | 13.7¢ | 26.88 lb | In stock | |
| 10 x 12 | 1,000 | $139.61 | 14.0¢ | 32.34 lb | In stock | |
| 10 x 13 | 1,000 | $129.01 | 12.9¢ | 35.08 lb | In stock | |
| 10 x 14 | 1,000 | $176.24 | 17.6¢ | 38.1 lb | In stock | |
| 10 x 15 | 1,000 | $178.80 | 17.9¢ | 40.7 lb | In stock | |
| 10 x 16 | 1,000 | $217.72 | 21.8¢ | 43.78 lb | In stock | |
| 10 x 18 | 500 | $118.09 | 23.6¢ | 24.26 lb | In stock | |
| 10 x 20 | 500 | $111.66 | 22.3¢ | 26.58 lb | In stock | |
| 10 x 24 | 500 | $144.61 | 28.9¢ | 32.7 lb | In stock | |
| 10 x 30 | 500 | $148.93 | 29.8¢ | 40.46 lb | In stock | |
| 11 x 15 | 1,000 | $188.89 | 18.9¢ | 43.64 lb | In stock | |
| 11 x 18 | 1,000 | $206.79 | 20.7¢ | 53.68 lb | In stock | |
| 12 x 12 | 1,000 | $183.26 | 18.3¢ | 39.36 lb | In stock | |
| 12 x 14 | 1,000 | $212.15 | 21.2¢ | 38.34 lb | In stock | |
| 12 x 15 | 1,000 | $225.89 | 22.6¢ | 49.54 lb | In stock | |
| 12 x 16 | 500 | $126.45 | 25.3¢ | 25.82 lb | In stock | |
| 12 x 18 | 500 | $118.59 | 23.7¢ | 29.36 lb | In stock | |
| 12 x 20 | 500 | $149.19 | 29.8¢ | 27.58 lb | In stock | |
| 12 x 24 | 500 | $174.36 | 34.9¢ | 38.82 lb | In stock | |
| 12 x 26 | 500 | $145.28 | 29.1¢ | 42.18 lb | In stock | |
| 12 x 30 | 250 | $109.14 | 43.7¢ | 24.72 lb | In stock | |
| 12 x 36 | 250 | $132.29 | 52.9¢ | 29.13 lb | In stock | |
| 12 x 48 | 250 | $135.53 | 54.2¢ | 32.52 lb | In stock |
| Size in inches | Bags per case | Price per case | Price per bag | Case weight | Stock | Order |
|---|---|---|---|---|---|---|
| 13 x 16 | 500 | $99.72 | 19.9¢ | 23.46 lb | In stock | |
| 13 x 18 | 500 | $110.59 | 22.1¢ | 31.44 lb | In stock | |
| 13 x 20 | 500 | $126.72 | 25.3¢ | 33.94 lb | In stock | |
| 14 x 14 | 1,000 | $246.40 | 24.6¢ | 53.12 lb | In stock | |
| 14 x 16 | 500 | $141.26 | 28.3¢ | 26.16 lb | In stock | |
| 14 x 18 | 500 | $126.03 | 25.2¢ | 31.56 lb | In stock | |
| 14 x 20 | 500 | $160.55 | 32.1¢ | 37.64 lb | In stock | |
| 14 x 22 | 500 | $152.15 | 30.4¢ | 41.54 lb | In stock | |
| 14 x 24 | 250 | $104.12 | 41.6¢ | 23.04 lb | In stock | |
| 14 x 30 | 250 | $130.73 | 52.3¢ | 29.2 lb | In stock | |
| 14 x 36 | 250 | $139.29 | 55.7¢ | 32.67 lb | In stock | |
| 14 x 40 | 250 | $127.53 | 51.0¢ | 37.97 lb | In stock | |
| 15 x 15 | 500 | $113.56 | 22.7¢ | 25.44 lb | In stock | |
| 15 x 18 | 500 | $150.07 | 30.0¢ | 36.26 lb | In stock | |
| 15 x 20 | 500 | $154.92 | 31.0¢ | 40.6 lb | In stock | |
| 15 x 24 | 250 | $101.00 | 40.4¢ | 23.46 lb | In stock | |
| 15 x 30 | 250 | $138.89 | 55.6¢ | 30.65 lb | In stock | |
| 15 x 36 | 250 | $148.80 | 59.5¢ | 35.88 lb | In stock | |
| 16 x 16 | 500 | $157.16 | 31.4¢ | 29.62 lb | In stock | |
| 16 x 18 | 500 | $174.55 | 34.9¢ | 34.22 lb | In stock | |
| 16 x 20 | 500 | $160.04 | 32.0¢ | 42.84 lb | In stock | |
| 16 x 24 | 250 | $107.06 | 42.8¢ | 23.96 lb | In stock | |
| 16 x 30 | 250 | $145.72 | 58.3¢ | 29.97 lb | In stock | |
| 16 x 36 | 250 | $174.36 | 69.7¢ | 30.95 lb | In stock | |
| 18 x 18 | 500 | $175.75 | 35.2¢ | 36.3 lb | In stock | |
| 18 x 20 | 250 | $97.49 | 39.0¢ | 19.3 lb | In stock | |
| 18 x 24 | 250 | $114.49 | 45.8¢ | 25.85 lb | In stock | |
| 18 x 26 | 250 | $141.21 | 56.5¢ | 30.95 lb | In stock | |
| 18 x 30 | 250 | $142.51 | 57.0¢ | 31.65 lb | In stock | |
| 18 x 36 | 250 | $169.08 | 67.6¢ | 42.58 lb | In stock | |
| 18 x 42 | 200 | $140.95 | 70.5¢ | 35.24 lb | In stock |
| Size in inches | Bags per case | Price per case | Price per bag | Case weight | Stock | Order |
|---|---|---|---|---|---|---|
| 20 x 20 | 250 | $106.18 | 42.5¢ | 25.15 lb | In stock | |
| 20 x 24 | 250 | $123.85 | 49.5¢ | 30.2 lb | In stock | |
| 20 x 30 | 250 | $155.52 | 62.2¢ | 33.57 lb | In stock | |
| 20 x 36 | 250 | $185.71 | 74.3¢ | 46.98 lb | In stock | |
| 20 x 42 | 200 | $153.24 | 76.6¢ | 42.12 lb | In stock | |
| 20 x 48 | 200 | $174.89 | 87.4¢ | 59.48 lb | In stock | |
| 22 x 22 | 250 | $123.69 | 49.5¢ | 31.25 lb | In stock | |
| 22 x 24 | 200 | $114.67 | 57.3¢ | 26.38 lb | In stock | |
| 22 x 30 | 200 | $143.25 | 71.6¢ | 32.98 lb | In stock | |
| 22 x 40 | 200 | $112.28 | 56.1¢ | 45.88 lb | In stock | |
| 24 x 24 | 250 | $144.96 | 58.0¢ | 37.65 lb | In stock | |
| 24 x 30 | 200 | $144.44 | 72.2¢ | 36.32 lb | In stock | |
| 24 x 36 | 200 | $178.92 | 89.5¢ | 38.34 lb | In stock | |
| 24 x 40 | 100 | $93.24 | 93.2¢ | 30.2 lb | In stock | |
| 24 x 42 | 200 | $204.96 | $1.02 | 53.36 lb | In stock | |
| 24 x 48 | 100 | $117.13 | $1.17 | 28.64 lb | In stock | |
| 24 x 54 | 100 | $82.68 | 82.7¢ | 34.52 lb | In stock | |
| 24 x 60 | 100 | $146.80 | $1.47 | 38.16 lb | In stock | |
| 26 x 26 | 250 | $177.02 | 70.8¢ | 38.12 lb | In stock | |
| 26 x 30 | 100 | $81.93 | 81.9¢ | 18.34 lb | In stock | |
| 26 x 36 | 200 | $195.12 | 97.6¢ | 46.74 lb | In stock | |
| 28 x 32 | 100 | $92.81 | 92.8¢ | 21.38 lb | In stock | |
| 28 x 36 | 100 | $105.38 | $1.05 | 22.64 lb | In stock | |
| 28 x 48 | 100 | $127.24 | $1.27 | 38.74 lb | In stock | |
| 28 x 50 | 100 | $124.75 | $1.25 | 36.46 lb | In stock | |
| 30 x 30 | 100 | $90.69 | 90.7¢ | 23.68 lb | In stock | |
| 30 x 36 | 100 | $110.86 | $1.11 | 26.66 lb | In stock | |
| 30 x 40 | 100 | $118.56 | $1.19 | 30.38 lb | In stock | |
| 30 x 42 | 100 | $127.58 | $1.28 | 33.08 lb | In stock | |
| 30 x 48 | 100 | $148.21 | $1.48 | 33.88 lb | In stock | |
| 32 x 32 | 100 | $106.02 | $1.06 | 27.92 lb | In stock | |
| 32 x 40 | 100 | $132.11 | $1.32 | 33.16 lb | In stock | |
| 32 x 48 | 100 | $159.13 | $1.59 | 37.74 lb | In stock | |
| 36 x 36 | 100 | $132.11 | $1.32 | 32.24 lb | In stock | |
| 36 x 48 | 100 | $174.77 | $1.75 | 40.06 lb | In stock | |
| 36 x 60 | 50 | $110.15 | $2.20 | 30.68 lb | In stock | |
| 38 x 60 | 50 | $113.50 | $2.27 | 28.02 lb | In stock | |
| 38 x 64 | 50 | $131.35 | $2.63 | 29.38 lb | In stock | |
| 42 x 40 | 100 | $170.98 | $1.71 | 39.1 lb | In stock | |
| 40 x 48 | 50 | $97.23 | $1.94 | 24.24 lb | In stock | |
| 40 x 60 | 50 | $110.68 | $2.21 | 30.94 lb | In stock | |
| 44 x 48 | 50 | $109.49 | $2.19 | 26.82 lb | In stock | |
| 48 x 54 | 50 | $132.29 | $2.65 | 36.6 lb | In stock | |
| 52 x 60 | 25 | $79.72 | $3.19 | 20.3 lb | In stock | |
| 60 x 60 | 50 | $199.13 | $3.98 | 47.06 lb | In stock |
How to choose a 4 mil poly bag
Thickness
A mil is one thousandth of an inch. Each wall of a 4 mil bag is 0.004 in thick, which is 101.6 microns, and a flat bag has two walls. That is twice the film of a 2 mil bag and two thirds of a 6 mil bag. Heavier film of the same material stands up better to punctures and rough handling. Lighter film costs less per bag and packs tighter.
The listings name tools, hardware, small parts, food items and bulk storage as uses. For static-sensitive parts, use the pink 4 mil anti-static bags.
Size
Sizes are the flat dimensions of the bag in inches. A flat bag has no gusset, so a thick item takes up part of both dimensions as the film wraps around it. Add the item's thickness to its width and to its length, then leave room to seal or fold the open end. The usable inside runs a little under the listed size.
A 6 x 8 in item that is 1 in thick needs a bag of at least 7 x 9 in. Start with 7 x 10 in or 8 x 10 in.
Case count and case weight
Bags per case drop as the bags get bigger, from 1,000 for the small sizes down to 25 for 52 x 60 in. Compare sizes by price per bag, since case counts differ. The case weight column helps plan freight. A case of 1,000 bags at 4 x 6 in weighs 6.46 lb. A case of 50 bags at 60 x 60 in weighs 47.06 lb.
Thickness at a glance
| Thickness | Each wall, inches | Each wall, microns | Case weight | SKU |
|---|---|---|---|---|
| 2 mil | 0.002 | 50.8 | 7.42 lb | PB440 |
| 3 mil | 0.003 | 76.2 | 11.04 lb | PB775 |
| 4 mil | 0.004 | 101.6 | 14.48 lb | PB1110 |
| 6 mil | 0.006 | 152.4 | 21.7 lb | PB8225 |
Buying by the case and pallet
Every price is for one case. Volume pricing starts at 3% off for 3 or more items and 5% off for 6 or more, counted across the whole cart. Orders of one or two items get free ground shipping in the US at $99 or more when the checkout shipping charge is $29.95 or less. Orders of one or two items with a product subtotal of $500 or more ship free when the checkout freight rate is $120 or less. Orders of three or more items get the volume discount instead of free shipping. Details are in the shipping policy.
Cases ship from five US warehouse regions. Checkout shows the freight for your address before you pay.
For pallet quantities, a standing order or a mix of sizes, send the SKUs, case counts and delivery ZIP on a bulk quote. The quote includes a live freight rate to your ZIP.
Common questions
How thick is a 4 mil poly bag?
Each wall is 0.004 in, or 101.6 microns, which is about 0.1 mm. A flat bag has two walls, so the film through the bag measures 0.008 in.
Is 4 mil or 6 mil thicker?
6 mil is thicker. A 6 mil wall is 0.006 in, one and a half times the 0.004 in wall of a 4 mil bag. At 6 x 9 in, a case of 1,000 bags weighs 21.7 lb in 6 mil and 14.48 lb in 4 mil. See 6 mil poly bags.
How do I measure for a flat poly bag?
Measure the item's width, length and thickness. Add the thickness to the width and to the length, then allow room to close the bag. Pick the next listed size up.
Are these bags food safe?
Every size in these tables is listed as 100% virgin polyethylene that meets FDA and USDA specifications. Food-contact compliance is certified per product lot, so ask support for the documents before the bags touch food.
How do I close a flat poly bag?
These bags are open on one end. Close them with a heat sealer, bag tape, twist ties or staples.
How much do 4 mil poly bags cost?
It depends on size and case count. The tables show the current case price and the price per bag for every size. Volume pricing comes off in the cart at 3 or more items.
Related
- 2 mil poly bags
- 6 mil poly bags
- 4 mil reclosable bags
- All poly bags
- Gusseted poly bags
- Poly tubing
- Poly bag thickness guide: 2 mil vs 4 mil vs 6 mil
Mil to inch and micron conversions follow NIST Special Publication 811, Appendix B.8: 1 mil is 0.001 in, or 0.0254 mm. Case weights, materials, uses and FDA and USDA wording come from Packrift product data as of October 2026.
Product Help Request
Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.
Buying path
Buy 4 Mil Poly Bags by the specs that change the order
Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.
Use filters and product titles to narrow by the specs that affect fit.
Open the product page before ordering a case so you can check quantity, unit, and limits.
Save the SKU or product link for repeat purchasing and support questions.
For pallet, recurring, or mixed-SKU orders, send your list and ZIP and get a delivered price by email.
What to check first
- Width and length
- Mil thickness or gauge
- Closure, gusset, or seal
- Case quantity