A shelving unit can be found in both professional and home laboratories. Able to hold various amounts of materials, a shelving unit helps keep a lab organized and clean. Shelving units come in various materials. A wire shelving unit offers amazing flexibility with lengths and heights. There are also shelving units made from lightweight corrosion-resistant polymers. Shelving units are available in vented or solid construction. Typically, shelves are adjustable, offering the flexibility to put the shelves where you need them.