Industrial floor mats include rubber mats and matting, modular floor mat systems, and other matting for traction, impact protection, worker ergonomics and comfort. They may include functional features such as protection against electrostatic discharge (ESD). Industrial floor mats that are chemically-resistant, grease-resistant, heated, or ribbed are also available. Chemical-resistant mats are made of chemically-inert materials, or are designed to resist common industrial chemicals and liquids. Grease-resistant mats have ribs or holes to prevent the creation of greasy, slippery surfaces. Heated floor mats contain wires or coils for heating. Ribbed floor mats are designed to improve traction or drainage. Performance specifications for industrial floor mats include width, length, thickness, and weight per linear foot. Materials of construction and application are also important considerations.