Factory Van Walls Limit Interior Space

Both Sprinter and Transit vans have inward wall curvature that restricts sleeping width.
Without expansion systems, builders must:

  • Sleep

    diagonally

  • Build

    narrower beds

  • Limit cabinetry

    layout

  • Lose usable

    interior space

Capsules solve this structurally — not cosmetically.

VANSPEED Sprinter Capsule

Structural Expansion, Not Accessories

Capsules extend the exterior wall outward to create:

  • True horizontal sleeping width
  • Improved mattress configuration
  • Better cabinet alignment
  • Increased usable interior volume

This is a body modification system — not an interior workaround.

Shop All Capsules

Platform-Specific Systems

  • Sprinter Capsules

    Designed for Mercedes Sprinter models
    (144 & 170 wheelbase).

    ---------------

    • Driver + Passenger matched units
    • Window integration options
    • Installation hardware included

    ---------------

    View Sprinter Capsules 

  • Transit Capsules

    Designed for Ford Transit models
    (148 & 148 EXT).

    ---------------

    • Structural expansion units
    • Matched driver & passenger systems
    • Installation hardware included

    ---------------

    View Transit Capsules 
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Capsules vs Stock Configuration

  • Vanspeed Capsules

    Expanded sleeping width

    Horizontal bed installation

    Structured system

    Long-term durability

  • Stock Configuration

    Factory wall curvature

    Diagonal compromise

    Improvised framing

    Interior workaround

Who Capsules Are For

  • Builders installing horizontal beds
  • Owners maximizing interior efficiency
  • Conversions prioritizing sleep comfort
  • Structured DIY builders
  • Professional van upfitters

Vehicle Compatibility & Installation

Sprinter Capsules are compatible with Mercedes Sprinter 144 and 170 wheelbase models.

Installation requires cutting the factory body panel to integrate the expansion unit into the van’s exterior wall structure.
All mounting hardware and seal components are included for structural alignment.
Professional installation is recommended unless you have experience with structural vehicle modifications.

To see the full installation process, watch our step-by-step installation video below.

Key Features

  • Has a consistent depth from front to back creating extra rear cabin space

  • Built in rain channel to prevent build up of water which causes body rust

  • Aerodynamic shaping for precise body fitment + bolt-on feature for a more secure fit

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True Horizontal Sleeping Space

Van Capsules expand the interior width of your van, allowing taller people to sleep sideways instead of lengthwise.

With up to 79.5 inches of interior sleeping width, many people up to 6’6” can comfortably sleep east-to-west, unlocking better layouts and more usable interior space.

Expand Your Van’s Interior With a Structural System

Shop Sprinter Capsules
Shop Transit Capsules