Up North Plastics produces the highest quality agricultural plastics out there. They only use premium grade polyethylene resins to produce bunker covers, silage bags, and bales wrap to survive the demanding conditions on your farm.
| Bag Size | Volume of filled bag allowing 15' for sealing ends | Average tonnage per foot of bag | Average Tonnage of filled bag |
Bushels of HM Shell Corn | Plastic Thickness |
| 7x150 | 5,234 ft3 | 0.77 | 116 | 3859 | 7.5 |
| 7x200 | 7,158 ft3 | 0.77 | 158 | 5277 | 7.5 |
| 8x100 | 4,272 ft3 | 1.11 | 93 |
3100 | 7.5 |
| 8x150 | 6,782 ft3 | 1.11 | 150 | 5000 | 7.5 |
| 8x200 | 9,294 ft3 | 1.11 | 205 | 6700 | 7.5 |
| 8x250 | 11,806 ft3 | 1.11 | 260 | 8600 | 7.5 |
| 8x300 | 14,318 ft3 | 1.11 | 316 | 10500 | 7.5 |
| 9x135 | 7,633 ft3 | 1.4 | 168 | 5500 | 7.5 |
| 9x150 | 8,585 ft3 | 1.4 | 190 | 6200 | 7.5 |
| 9x200 | 11,764 ft3 | 1.4 | 260 | 8500 | 7.5 |
| 9x250 | 13,282 ft3 | 1.4 | 330 | 11000 | 7.5 |
| 9x300 | 16,108 ft3 | 1.4 | 400 | 13300 | 7.5 |
| 10x150 | 10,597 ft3 | 1.73 | 235 | 7700 | 8.0 |
| 10x200 | 14,523 ft3 | 1.73 | 320 | 10500 | 8.0 |
| 10x250 | 18,457 ft3 | 1.73 | 407 | 13500 | 8.0 |
| 10x300 | 22,372 ft3 | 1.73 | 493 | 16350 | 8.0 |
| 12x200 | 20,340 ft3 | 2.32 | 418 | 14600 | 8.5 |
| 12x250 | 25,990 ft3 | 2.32 | 534 | 18700 | 8.5 |
| 12x300 | 31,640 ft3 | 2.32 | 650 | 23013 | 8.5 |
| 14x300 | 43,080 ft3 | 3.4 | 950 | 31350 | 9.0 |
| 14x500 | 71,800 ft3 | 3.4 | 1600 | 52800 | 9.0 |