Howdy folks.
I have an 18" dishwasher ordered and on its way. The standard size will not fit.
I'd like to go ahead and get the space cut out. I have the dimensions and a saws-all to make the cuts. The red square in the foto is where she's going. My foremost question is how far down to I make the hole? Do I go ahead and cut all the way down to the linoloeum? There has never been a dishwasher in this house so it is a from scratch job.

Any advice is greatly appreciated~