Are shipping container end wall corrugation inserts different in depth and profile from side wall inserts?

Shipping container end wall corrugation inserts have a shallower depth and narrower profile than side wall inserts because ISO container manufacturing specifications use distinct steel corrugation depths across different structural panels.

Standard ISO shipping containers utilize varied steel stamping depths to balance structural rigidity with interior cargo volume, presenting a layout challenge when insulating container interiors. Installing standard flat insulation over irregular corrugations without matching foam inserts creates unbacked cavities, uneven mounting surfaces, and severe condensation risks against cold steel.

If you only do one thing: Match insert profiles directly to each specific wall orientation before applying adhesive to ensure a flush, continuous backing surface for interior panels.

• Profile depth variations: End wall corrugation inserts measure approximately 0.75 inches deep to match shallow front steel stampings, whereas side wall inserts measure roughly 1.5 inches deep to fill the deeper side ribbing.
• Corrugation pitch and shape: Side wall corrugations feature wider trapezoidal rib patterns with a 6-inch repeating pitch, requiring wider expanded polystyrene (EPS) foam inserts compared to the narrower channels found on end walls.
• Surface plane alignment: Precision-cut EPS foam inserts fill the negative corrugation voids, converting uneven 14-gauge corrugated metal into a flush vertical plane ready to receive 2.0-inch continuous insulation panels or framing studs.
• Condensation control: Filling steel corrugation voids 100 percent eliminates convective air pockets and thermal bridging behind finished assemblies, maintaining uniform continuous thermal resistance across the wall envelope.
• Adhesive bonding application: Inserts adhere directly to clean Corten steel corrugation valleys using a continuous 3/8-inch vertical bead of construction-grade polyurethane or modified polymer adhesive per insert.

• Watch out for: Forcing deeper 1.5-inch side wall inserts into 0.75-inch end wall channels, which causes the foam to protrude past the steel ribs and prevents flat panel seating.
• Watch out for: Overlooking container ceiling profiles, which use distinct roof corrugation depths that differ from both side and end wall geometries.
• Watch out for: Applying adhesive over loose rust, flaking paint, or surface grime, which reduces bond strength below standard structural requirements.

Measure the depth and repeating pitch of each container wall section with a tape measure to order the exact insert profiles needed for your project.

General information only, not medical advice. Decisions about health, treatment or wellbeing should be made with a doctor or other qualified healthcare professional.