Measure the rug.
Cut the rug pad so that it is at least 1 inch shorter than the rug on all sides.
Roll up the rug and the rug pad. Move any furniture back or out of the way.
Unroll the rug pad placing it carefully in the center of the space.
Place the edge of the rug 1 inch beyond the edge of the rug pad and unroll the rug over the pad. If your pad is more than 1 -inch smaller than the rug, change the placement of the edge of the rug accordingly.
Move the furniture back into place.