Interior Framing System for Sprinter Van Conversions - The “Backbone” of Your Van Build
Transform your crew or cargo van into a professional-grade adventure rig with the Lost Hiway Builder Foundation Kit. This complete interior framing system creates a strong, continuous mounting surface so you can securely install wall panels, overhead cabinets, L-track, and more, without drilling into factory holes.

• Built to last: Precision-engineered from 16-gauge powder-coated steel for unmatched strength and durability.
• Frustration-free install: Includes all hardware, a step-by-step installation video, and direct access to our support team.
• Professional foundation: Provides the structural framework needed for a clean, solid, and safe build. So that you can build like a pro! 
• Versatile design: Compatible with cabinets, bed systems, and accessories along the full length of your van.
• From Start to Finish: Lost Hiway has you covered. Compatible with the entire Lost Hiway product catalog of interior components, the only true “one-stop-shop” kit. 

KIT INCLUDES: 

• Powder Coated Steel Structural Bracing
• L-Track
• Custom Fit GoCode Trim Finish Kit 
• Installation Hardware
• Installation Guide 

Trusted by DIY builders and professional upfitters nationwide, the Builder Foundation Kit is the first step toward a smarter, stronger, and more adventure-ready van conversion.

Install Video

Install Video Link
L-Track Explained Link (144)
L-Track Explained Link (170)

Sprinter Vans

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