What should the proper distance be between lower cabinets flanking a "30" inch kitchen range? We have researched this subject and find more then one answer. Some say 30 inches, others say 30 1/4 inches in case the range is not 'square'. Is this ever a real issue? We want to minimize the gap so food crumbs have less chance of dropping onto floor between cabinet and range, but are we 'taking a risk' of a tight fit by making the gap only 30 inches (the range is 29 7/8)?