@kel_kat5 There are many ergonomic factors that need to be considered when determining sink depth. Double bowl sinks need to be deeper because large items, such as cookie sheets, trays, and other large items will not fit flat down in the bowl. They are generally washed by putting them half in and half out of the bowl at an angle while washing the bottom half, then flipping it around to wash the other half. These sinks should be 9 or 10" deep depending on your height. If you are shorter than 5'4" or taller than 6'0", I would suggest a 9" deep bowl. A shorter person and taller person will find it uncomfortable to reach down to the bottom of a 10" deep bowl. The best scenario, in my opinion, is a single bowl sink with a rear corner drain. That allows the user to lay large items flat down inside the sink to wash them without covering the drain. In this case, the sink should be 8" deep for most users, however, the same situation is true with shorter or very tall users. The bowl should be just a tad shallower. The reasoning here is that the user will be working at the bottom of the bowl all the time and reaching below 8" is ergonomically uncomfortable. The drain location should be placed in the right rear corner for right-handed users and in the left rear corner for left-handed users. The reasoning here is simple. A right-handed person will always hold a dish in their left hand and scrape debris into the disposal with their right hand. If you follow the motion of the right hand it leads to the right rear of the sink. There is another reason that is often overlooked. If the drain is in the right rear, the dish will be slightly turned toward the drain instead of perpendicular to the user. When a spray is used on the dish, the water will reflect away from you with the rear corner drain instead of potentially at you when the dish is perpendicular to your body. I have studied ergonomics for 40 years, the first 20 years, as a professional kitchen designer and the last 20 years as a sink designer. It has been my passion all of those years to provide ergonomically comfortable kitchens and sinks as well as to design kitchens and sinks that save time. As they say, "you can't make time" - however, you can save time! Best of luck in your search for a sink. Dino Rachiele
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