Manual-lock cartons for stronger retail bases
Custom Snap Lock Bottom Boxes are folding cartons with base flaps that fold and interlock by hand to create a stronger bottom for retail products.
This structure is also known as a 1-2-3 bottom box because the bottom usually locks through a short sequence of folding steps. It is useful when a product needs more base strength than a simple tuck bottom but does not need the faster pre-glued setup of an auto lock bottom carton.
The main benefit is control. The packer manually locks the base into place, which creates a firm bottom for products such as cosmetics, jars, supplements, small bottles, candles, confectionery, gift items, accessories and sample kits. These cartons still store flat before use, so they work well for product teams that need better structure without bulky pre-assembled packaging.
Custom Packly creates Custom Snap Lock Bottom Boxes with custom sizing, paperboard options, offset printing, finish support and dieline guidance. The wider Custom Folding Cartons and Tuck Boxes range can help when your product needs a different tuck closure, display face or base style.











