Most kitchen layouts start from the concept of a “work triangle” between the sink, refrigerator, and cooking surface (Figure A). For an efficient work triangle, follow these guidelines:
No leg of the triangle should be less than 4 ft. or greater than 9 ft.
The total distance between all three points should fall between 12 and 26 ft.
Traffic patterns and cabinets should not obstruct any leg of the triangle. No leg should intersect an obstacle by more than 12 in.
Never separate two primary work centers (such as the main sink and cooktop) with a refrigerator, a full-height, full-depth cabinet, a wall oven, or a pantry cabinet.
Figure A: Work Triangle
Daylighting. More than just about any other room in the house, the kitchen benefits from good daylighting. As a rule of thumb, the combined area of windows and skylights should equal at least 10% of the area of the kitchen (or of the living space that includes the kitchen).
Traffic. One key to successful kitchen design is making sure a kitchen layout handles traffic well. Avoid plans in which people have to pass through the main kitchen work area to get from one part of the house to another.
Entrances and walkways. Make entrances to the kitchen at least 28 in. wide (for a very tight kitchen). A better target is 32 in. wide (Figure B). Make walkways at least 36 in. wide (42 in. is a better target), and allow at least 36 in. of clearance for cabinet access (the distance from the cabinet front to a wall or obstacle).
Figure B: Kitchen Clearances
To maintain enough clearance between cabinets for people to work and pass each other, draw all doors and drawers in the open position in the design phase. The HUD Minimum Property Standards (1980) stipulates a minimum clearance between cabinets of 40 in. for one person (42 in. is a more generous target) and 48 in. for two (a more generous allow-ance is 60 in.). Anything over 60 in. just means extra walking between one counter and the next, reducing efficiency.