When sourcing trash bags in bulk, thickness is the single most important specification that determines both performance and cost. Yet many procurement managers either overpay for bags thicker than they need, or face constant complaints about leaks and tears because they went too thin. This guide explains exactly how to match mil thickness to your application.
A mil is a unit of measurement equal to one-thousandth of an inch (0.001"). It is NOT a millimeter - 1 mil equals about 0.0254 mm. Trash bags typically range from 0.7 mil (light duty) to 4.0+ mil (contractor grade). Low-Density (LDPE/LLDPE) bags are measured in mils. They are stretchy, puncture-resistant, and ideal for waste with sharp or heavy contents. High-Density (HDPE) bags are measured in microns (1 micron = 0.001 mm). They are stiffer, use less resin (cheaper), and suit light, soft waste like paper and food scraps.
| Thickness | Best For | Typical Users |
|---|---|---|
| 0.7-0.9 mil (8-12 micron HDPE) | Office paper, light kitchen waste | Offices, hotels, restrooms |
| 1.0-1.5 mil | General commercial waste, food service | Restaurants, retail stores |
| 2.0 mil | Wet waste, moderate sharp edges | Supermarkets, food processing |
| 3.0 mil | Construction debris, warehouse waste | Contractors, factories |
| 3.5-4.0 mil | Heavy industrial waste, metal scraps, glass | Industrial plants, demolition |
Moving from a 2.0 mil bag to a properly specified 1.5 mil bag for light commercial waste cuts resin usage by 25% - which translates almost directly into a 20%+ lower unit price on bulk orders. For a business using 50,000 bags a year, that is real money. On the other hand, if your waste includes sharp edges (factory offcuts, glass, metal), stepping up to 3.5 mil eliminates double-bagging - many industrial buyers actually reduce total bag consumption by 40% after upgrading. Our 55 Gallon Ultra Heavy Duty 3.5 Mil Trash Bags are built exactly for this use case.
Q: What thickness do I need for a 55-gallon drum liner?
A: For general industrial waste, 2.0-3.0 mil. For sharp or heavy debris, 3.5 mil minimum. See our heavy duty trash bag collection.
Q: What is the MOQ for custom thickness?
A: Our MOQ is 5,000 pcs, custom thickness from 1 mil to 4 mil, HDPE or LDPE, free stock samples available.
Q: How long is production lead time?
A: 20-25 days after deposit for custom orders, shipped from Shanghai or Anqing port.
Q: Can you print our logo on the bags?
A: Yes - send your logo in AI/PDF format and we provide free design service.
As a factory with 30+ years of production experience exporting to 50+ countries, we quote within 24 hours. Contact us with your size, thickness, and quantity - or request a free sample first.
