Swiss has become one of the leading aluminum and commercial cap manufactures nationwide. The Heavy Duty Unit (HDU), by Swiss, is one of the only commercial caps that can still be completely designed by you. The rugged construction will endure years of use, making your life a little easier. With hundreds of different options and styles to choose from, Swiss can manufacturer YOUR custom HDU to fit any job. See your local Swiss dealer and tell them what you need the cap to do for you and they will be happy to help you design it. There are so many possible configurations of the HDU we can not possibly show you them all, so do not hesitate to contact us or a dealer near you with any questions you may have. The HDU by Swiss, offers the following standard features: Heavey Duty .080 mounting rails Smooth .030 exterior skin (paintable) Deluxe "H" ladder rack with center bar Weather sealed doors Gas props on all lift doors 5 bow construction 2 post corner frame construction Black trim with finished base edge Half-gate lift up rear door 67" side doors - solid panel 3 point latching system on side doors     With black fold down "T" handles Choice of 7 standard colors You can choose from a wide variety of options to customize your HDU, to meet your specific needs.   Door and window configuration Cap Heights Roof styles Ladder rack designs Keyless entry Interior dome lights Tool box shelving and compartments Sliding and fold down trays Painted to match your company trucks Be sure to check out the Options link to view a more complete list of optional features along with photos.