Vertical E Track Shelving KitE Track Shelving Kit for Interior Van Trailers Create adjustable shoring beams or shelves in your enclosed trailer using this vertical E Track shelving kit. Designed for use with 2x4 lumber, the included wood end sockets snap into place on the rails for fast setup. Kit Includes: (4) 5' Vertical Galvanized E Track Rails VERT5GV (8) Wood End Sockets WES 100 Installation Notes: This kit allows for flexible cargo management using vertical E Track and wood