Floor #2

The Foundation of Everything

The floor is the base of the build and provides the features for the rest of the build. Floor #1 achieved insulation and flatness but lacked structural support

• walls were bearing too much load despite being curved and hollow at counter height.
  
  

  Design Inspiration
  
  This approach was inspired by Orton Transit's floor design. The result: warmth, flatness, and the capability to securely anchor or quickly remove interior cabinet modules.
  
  

  The 10-Layer System
  
  (Bottom to top)
  
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  1. Microfoam Corrugation Fillers
  Retained from Floor #1, filling gaps in the van's metal floor corrugations.
  
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  2. Mass Loaded Vinyl (MLV)
  Three-strip layout with offset seams for:
  

  • Dampening road noise
    
    • Providing a stable plywood base
      
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      3. Birch Plywood Floor
      Four sections from 4×8 sheets of 1/2" material, primer-painted for moisture protection.
      
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      4. 80/20 Aluminum Structure Base
      The game-changer:
      

      • Secured via elevator bolts with construction adhesive
        
        • Anchored to studs beneath the plywood
          
          • Plywood anchored to D-ring tie-downs using custom aluminum blocks
            
            • Creates independent structural grid
              
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              5. Polyiso Rigid Foam Insulation
              Fills gaps in the 80/20 grid:
              

              • Creates even thickness
                
                • Embedded t-slots remain accessible for cabinet anchoring
                  
                  • R-value insulation from cold metal floor
                    
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                    6. Flooring Materials
                    

                    • Vinyl plank in walkway areas (wood appearance)
                      
                      • Coin pattern rubber in side areas (taped down)
                        
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                        7. Fiberglass Layer
                        Added down the center walkway for additional durability.
                        
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                        8. Heated Floor Pad
                        Electric heating pad for cold weather comfort.
                        
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                        9. Final Vinyl Plank Layer
                        The topmost surface

                        • durable, water-resistant, easy to clean.
                          
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                          10. 80/20 Cabinetry
                          Bolted down to open t-slots in the floor structure. Can be reconfigured or removed entirely.
                          
                          

                          Key Design Principles
                          
                          Independent Structure: The floor provides structural support independent of the curved, hollow walls.
                          
                          Thermal Break: Multiple insulation layers and wood anchors prevent cold transfer from the metal van floor.
                          
                          Modularity: The 80/20 system allows complete reconfiguration of the interior without rebuilding.
                          
                          Serviceability: Systems beneath the floor (electrical, plumbing) remain accessible.
                          
                          

                          Why This Matters
                          
                          This floor system transformed the build. Instead of permanent cabinetry screwed into weak walls, everything mounts to a solid, configurable platform. When I wanted to add the butcher block extension or reposition storage, I just unbolted and moved things around.
                          
                          Cost: Approximately $1,500 for materials (80/20, insulation, flooring, MLV)