The most commonly used paracord for tying a bracelet/necklace is Paracord 550 Type III. Type II and I are more often used for making collars for smaller dogs or bracelets for children. PPM is widely used for knotting collars for medium to large dogs. Below is the thickness and breaking strength of all types of paracord from our webshop.
Microcord - 1.4 mm - breaking force 40 kg
100 Type I - 1.8 mm - breaking force 100 kg
400 Type II - 3 mm - breaking force 192 kg
550 Type III - 4 mm - breaking force 249 kg
PPM Premium - 6 mm - breaking force 525 kg
Dog leash rope - 10 mm - breaking force 1000 kg