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Container internal sizes are industry-standard values (20GP 5898×2352×2393 / 40GP 12032×2352×2393 / 40HQ 12032×2352×2697 mm) and vary slightly by carrier. Results are the theoretical maximum of a layered mixed-orientation algorithm — allow a 3–5% margin in practice and confirm carrier payload rules; pallet plans also need forklift clearance.
Smart 3D Carton Box Designer
Enter the unit package L×W×H and weight to auto-design the outer carton size, pieces per carton and arrangement, keep gross weight under the limit, and generate all box marking content.
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Pieces per carton
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Carton outer size L×W×H
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Gross weight
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Weight utilization
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Printed on the corresponding box faces; quantity, weight and sizes update with the design.
Position
Print content
Alternatives (click to switch the 3D preview)
Generated for the selected scheme — confirm it meets packaging needs in the Design tab first. Red = cut · blue dashed = crease · units mm. Send the SVG vector file straight to your carton plant.