George,
The company at your link
Battleship Linoleum had the tan (brown) linoleum that was wide enough for the suburban and thick enough to route grooves in it. He did not have the black linoleum in a thickness that could be routed/grooved.
The seller is quite friendly and informative. He has an old article on how to make a jog in order to route the grooves in the thicker linoleum.
The linoleum was made in two thicknesses and the thicker rolls were no longer being imported (from Scotland, via Canada). I bought 8' of the thinner black linoleum. It was plenty wide for my Suburban.
Tim
