The amount of border that shows on the face of the rug ranges from 1" to 3 1/2" and does not add to the width of your rug.

The amount of border that shows on the face of the rug ranges from 2 1/4" to 3 1/2" and does not add to the width of your rug.

A continuous wrap of yarn around the edge of your rug, either by hand or by machine. Machine serged has a finished width of approximately 3/8". 

Binding corners may be lapped or mitered, with either a top stitch or hidden stitch, depending on the specific rug.