Stainless steel is the standard kitchen sink material. This is the thickest and most durable type of stainless steel. Many findings https://www.nivito.com suggest that 16 to 18 gauges are the best choice. Those with lower gauge numbers are considered to be luxury. For a high-quality sink, look for a 16 or 18-gauge sink. If you don't like stainless steel, you can always opt for a commercial gauge of 0.0500 inches thick.