Designing Kitchens and Bathrooms - Kitchen Base Cabinets need buying advice

I am completely redoing a small kitchen that will have 17" wide sink and an 18" wide builtin dishwasher next to it. I want to use stock bigbox store if possible. Questions I have....

1) Should I buy two 18" cabinets or one 36" cabinet.
2) Is there any difference about the cabinet that takes the dishwasher? Do I just remove the cabinet doors and pop the D/W in? Even better - do they sell them without the doors?

Thanks!!!!

The dishwasher does not go into a cabinet, it is installed beside one.

Is your space between walls, or open on one side or two sides?

How wide will your sink be? a single bowl ? or dbl bowl ?

Thanks. That makes sense for the D/W I guess. It's between walls. Very limited space in a studio apt so I need to downsize everything. I will have a 20" freestanding range, an 18" dishwasher, 24" wide frig, and small 17x22 single basin sink that I guess can fit in an 18" cabinet. All the sink cabinets seem to be 36" so I'm not sure what I have to do for that.

Gene

Do you have an 18 inch diswasher? Dishwashers are normally 24 inches wide and fit under the counter. Just trying to learn. Thanks.

Yeah, purchased a Kenmore 18" dishwasher from sears. Home Depot has GE Spacesaver 18" dishwashers and also a special GE 24" under-sink dishwaher to save space. I went with the 18 rather than under sink model as it seems like an easier install.