Burlap bags are specified according to their width and weight and fall within two general classes:
1. Common – plain
2. Bright – more finely combed with not as much filler. Lighter weight bags have a very open weave more suitable for larger size items. Smaller objects must be placed into burlap bags with a tight weave. A suitable size and bag weight must be used to safely contain the contents. Bag fibers should be made of hemp or of an otherwise biodegradable substance.
Drawstrings are the preferred closing method as opposed to stapling, wiring or stitching the bag opening shut.