Crown Industries is a Designer and Manufacturer of Heavy Duty Industrial Doors Aviation, Commercial, and Agricultural Using the resources and technology available today, we constantly strive to produce a better product for our customers. We have found the best design resource available is our customer's feedback. Our commitment to you is to provide the best product possible, backed by the best warranty in the industry. Crown Industrial Doors will continue to strive to produce better products and reserves the right to make changes in our product without obligation to make changes in products previously sold.