Vertical Doors, Inc.® All systems are "Direct Bolt-On" kits that are professionally researched and designed by engineers for each specific vehicle. It's a complete well-designed and tested system, and it's very easy to install. Superior design, materials, manufacturing, safety, performance and style - Vertical Doors Inc. is the industry leader and is known for their Quality and Great Customer Service. Made in USA U.S. PATENT # 6,808,223 ; 6,845,547 and 7,059,655 and other patents pending. This system is everything you need for a successful, reliable and cost effective
conversion in a minimum amount of time. * Professional installation is recommended.