Clark Doors has been assisting its customers with innovative solutions for cold storage and industrial applications for over 100 years. Clark cold storage and industrial doors are built to withstand rigorous heavy industrial use. The Clark Cold Storage Door has a core of foamed-in-place urethane. The door operators include electric, hydraulic and belt driven. These are available in all voltages and are manufactured to NEMA 4 requirements. Clark Door’s manufacturing process ensures top value to our customers. This is why Clark remains a leader in the industry.