The Bottom Seam Under Heavy Pet Refills
Litter refills and canned-food multipacks put concentrated weight on a shipping box's bottom panels before the carton ever reaches a delivery truck.
During handling, that weight transfers through the bottom flaps, sidewalls and sealed joints. A weak seam can separate even when the product inside remains undamaged.
Custom Shipping Boxes for Pet Supplies need to carry these loads without relying on excessive tape or loose cushioning to compensate for unsuitable construction.
The priority is different from a presentation-focused mailer. Heavy pet supply orders need a dependable outer shipping case that supports the contents during lifting, stacking, sorting and delivery.
Regular Slotted Containers
A regular slotted container is a practical starting point for many pet supply shipments.
Its four top and bottom flaps fold toward the center, creating a conventional shipping carton that can be assembled and sealed with packaging tape.
For a heavy litter refill, the bottom closure needs to accommodate the packed weight and the way that weight rests on the flaps.
The bag should sit securely without forcing the carton out of shape. Appropriate board strength and a correctly applied bottom seal are both important.
Full-Overlap Construction
Where the base needs additional corrugated coverage, full-overlap boxes offer a different construction.
Their major flaps extend across the full width of the box rather than meeting at the center.
The overlapping layers add material across the top and bottom surfaces. This can be beneficial for dense contents, concentrated loads and shipments exposed to demanding handling.
The additional coverage does not eliminate the need for suitable board strength, proper sealing or correct product placement.
It also increases material consumption, so the reinforcement should serve a genuine shipping requirement.
