RESEARCH GUIDE 21

Dry-van walls: sheet-and-post versus composite plate

Body construction affects the cargo space, repair method and service specification. A composite liner is not automatically a composite wall.

TRAILER MECHANISMS

Enclosure versus active refrigeration

A dry van is an enclosed freight body. A refrigerated trailer adds insulation, active temperature control and its installed refrigeration system.

Dry van body

Enclosed cargo body; no active refrigeration is implied.

Refrigerated body

Insulated body with a front-mounted transport refrigeration unit.

Heaters and freeze-protection systems are configuration facts; they do not automatically create a refrigerated architecture.
01

Read the construction description

The ULTRAVAN and ULTRAPLATE references distinguish sheet-and-post and composite/plate construction. Keep the structural wall description separate from the interior lining material. Product branding or a smooth interior image cannot identify the complete wall assembly.

  • Wall structure
  • Interior liner
  • Posts or panel joints
  • Repair documentation
02

Measure the freight path

The useful envelope includes the door opening, interior width at the load, roof obstructions and floor condition. Overall body width cannot substitute for the clear opening. Record the actual forklift and cargo contact requirements separately from frame or gross ratings.

  • Door opening
  • Interior clear dimensions
  • Floor loading basis
  • Dock and forklift interface
03

Inspect the body as a system

Review panel damage, joints, floor, roof and rear frame with qualified help. Ask which repairs preserve the manufacturer’s construction requirements. A strong wall description does not establish the condition of a used body or cargo-restraint equipment.

  • Repair and leak history
  • Floor and rear frame
  • Cargo-restraint provision
  • Current configuration documents

Apply this guide to a documented model

Manufacturer references

Verify the exact configuration and support conditions before using a published value.

Manac ULTRAWING Ultravan Van ↗

Manac ULTRAWING Ultraplate Van ↗

Stoughton Z-Plate Composite ↗

Stoughton Tough Plate Composite ↗