A. Model L-550= 5 3/16" wide x 12 11/16" high; Model L-750= 7 5/8" x 13 7/16"; Model L-850= 8 5/8" x 13 5/8"; model BF891S= 8 5/8" x 16 5/8"; Model L-950= 8 5/8" x 14 1/2"; Model L-1050= 8 5/8" x 16 1/16". These measurements are for the widest dimensions; height is from the top of the sink flange to the bottom of the casing. You will need a lot more space than that as you need to consider the wiring and drainage.