I built a second pad to play doubles. The distance
between two DDR pads for doubles is 1-13/16 inches.
I screwed together two pieces of 1 by 2 MDF and bent
sheet metal around the 2 inch side which really only
measures 1-1/2 inches. I then cut two 6 inch straps
from some scrap sheet metal and screwed them into the
pads and the new middle piece. Strapping the two pads
together makes the distance between them 1-13/16 inches.
