How thick should my bag be?

That depends entirely on the type of trash you will be filling the bags with. For lighter, less bulky garbage, such as trash from bathroom paper waste, or a desk-side bin, a thinner (high-density) bag is sufficient. For heavier, bulky, or sharp garbage, as is common in kitchens or construction sites, a thicker (low density) bag is a good choice. Bag thickness is measured in mils and microns. Most trash bags you'll find in the store range from 0.7 - 1.0 mil in thickness. Thicker bags, like the bags contractors use, are usually 3.0 mil or more in thickness.

The tables below show the maximum load that the bags can handle based on their thickness. Please keep in mind that the max load is only accurate if you are using the right kind of bag for the right kind of trash. For example, high-density bags cannot handle trash with sharp edges.