18x18x18 vs 16x16x18 Boxes

Not sure which to pick? Use the Packaging Tools to get a recommendation.

Choose 18x18x18 when your product fits the 18x18x18 interior with room for dunnage. Choose 16x16x18 when you need more interior space at 16x16x18 or a different aspect ratio.

18x18x18 options

• 18x18x18" ECT-48 Double Wall Corrugated Boxes - Heavy Duty Kraft, Bundle of 10
  $43.98In stock
• 18x18x18" ECT-32 Kraft Corrugated Cube Boxes - Bundle of 20
  $47.95In stock
• 18x18x18" Multi-Depth Corrugated Box ECT-32 Kraft - 20 Pack
  $54.24In stock
• 18x18x18" ECT-44 Heavy-Duty Kraft Corrugated Boxes - Bundle of 20
  $74.41In stock
• 18x18x18" White Corrugated Box ECT-32 Single Wall Bundle 20
  $77.57In stock
• 18x18x18 ECT-48 Double Wall Boxes w/ Hand Holes ‚Äì Bundle of 10
  $68.03In stock

16x16x18 options

• 18x16x16 ECT-32 Kraft Corrugated Boxes - Bundle of 20
  $47.99In stock
• 16x16x18 ECT-32 Kraft Corrugated Boxes - Reliable Shipping, 25-Pack
  $59.94In stock
• 18x16x16 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Kraft, Bundle of 10
  $66.57In stock
• 16x16x18 ECT-48 Double Wall Boxes - Heavy Duty Kraft Cartons, Bundle of 15
  $86.14In stock

When to use

• Deciding between 18x18x18 and 16x16x18 for a new SKU or packaging refresh.
• Cost, protection, and throughput tradeoffs.

When not to use

• Edge cases where neither option fits — check the related guides.

Frequently asked