Prevent Shipping Boxes From Collapsing

Boxes collapse when the ECT rating is too low or voids allow the walls to flex. Switch to ECT-44 single-wall (up to 50 lb) or ECT-48 double-wall (up to 80 lb), seal with the H-tape method, and fill all voids so the box resists stacking pressure.

Quick facts

In-stock options

• 6x6x6 ECT-44 Heavy-Duty Kraft Corrugated Boxes - 40% Stronger, Bundle of 25
  $15.14In stock
• 8x8x8 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping, Bundle of 15
  $15.54In stock
• 6x6x6 ECT-48 Double Wall Boxes - Heavy-Duty Kraft Corrugated, Bundle of 15
  $16.22In stock
• 4" x 250' A-Flute Kraft Singleface Corrugated Roll - Void Fill & Padding
  $9.34In stock
• 9" x 250' A-Flute Kraft Singleface Corrugated Roll - Protective Void Fill
  $16.62In stock
• 12" x 900' Kraft Paper Roll - 40 lb. Recycled Void Fill & Wrap
  $16.82In stock
• 2" Gray Plastic Strapping Tape Dispenser - Fast Hand-Held Carton Sealing, 1 Each
  $8.49In stock
• 1/2" x 5 yds 3M 4466 Double Sided Foam Tape - Precision Cushioning
  $10.40In stock
• 2" Steel/Plastic Carton Sealing Tape Dispenser - Top Gun Pistol Grip, 1 Each
  $13.02In stock

When to use

• Fixing a recurring damage, cost, or throughput issue.
• Spec'ing corrective materials before peak season.

The problem

Boxes collapse when the ECT rating is too low for the load, when they're overstuffed past the manufacturer's test weight, or when stacked under heavier parcels in transit.

The fix

Step up to ECT-44 or double-wall ECT-48 for any shipment over 25 lb. Use the H-seal tape method on both top and bottom. Fill voids so the box doesn't flex when stacked.

Alternatives to consider

• 12x6x6 ECT-44 Heavy-Duty Kraft Corrugated Boxes - 25 Pack
  $20.94In stock
• 10x10x10 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, 15-Pack
  $21.93In stock
• 8x8x8 Heavy-Duty ECT-44 Kraft Corrugated Boxes - 25 Pack Bundle
  $23.04In stock
• 12x12x8 ECT-48 Double Wall Corrugated Boxes - Heavy Duty, Bundle of 15
  $27.92In stock
• 12x12x12 ECT-48 Double Wall Corrugated Boxes - Heavy Duty, Bundle of 15
  $28.70In stock
• 16x12x12 ECT-44 Heavy-Duty Kraft Corrugated Boxes - Bundle of 15
  $29.66In stock

Also stocked

• 3" x 60 yd Clear Strapping Tape 180 lb - Case of 12 Rolls
  $103.29In stock
• 1" x 60 yds Clear Strapping Tape 110 lb - Case of 36 Rolls
  $115.23In stock

Frequently asked