Commercial Stainless Steel Microwave Wall Shelf The wall shelf, constructed from 18-gauge stainless steel, is the perfect wall mount shelf for multiple purposes and settings. Our product is NSF certified, meeting strict standards for public health protection and safety. Built for quality, sturdiness, and durability, it can handle high-volume. This wall shelf is premium quality so it should last a lifetime. No matter what messy projects or hobbies you love to invest time in, this table can handle any wear-and-tear. Because it’s industrial-made, surface imperfections such as scratches, scuffs and dents may be found. This is normal and to be expected on products of this nature.