Helpful Hints

September 2012 - VIDEO: Bottom Closure
Options for Packaging Applications

Apex Die President Kevin Cullen goes over popular
bottom closure styles for packaging applications.

Before choosing a bottom closure style, many factors – budget, function, and usage requirements, to name a few – must be considered. Here's a handy guide to a few popular bottom closures we can help design for you.

Tucked Flap - Also called a "tuck end" or "tuck bottom" closure, tucked flap styles use a large final flap folded over two smaller dust flaps to create a secure closure. Tucked flaps are highly versatile. They work equally well as a top or bottom closure, and the final flap can be positioned to open at the box's front or rear face - great for software packaging and retail applications. Tuck-style boxes are inexpensive to produce, easy to use, can be shipped and stored flat and handle weight very well.

Auto-Lock - An auto-lock design uses a combination of carefully-designed glue
tabs and flaps to automatically form the box bottom as soon as the box is opened.
Auto-lock bottoms create a strong base and are easy to use.

Sealed End - This style uses a solid flap glued the length of the packaging to seal the bottom. Sealed-end bottoms are popular for many retail packaging applications, and can in some cases be created inline during product packing.

Snap Lock - Similar to a tucked style box, a snap-lock bottom incorporates interlocking tabs to form a strong bottom seal. Snap lock styles are popular for point-of-purchase applications such as counter displays.

Stock Selection – Match your paper stock and closure style selections to your application's weight requirements. Heavier stocks allow your packaging to hold more weight, but the dimensions of your package and the thickness of your stock may limit your bottom closure choices.

We usually suggest selecting between a 12pt and 24pt stock for your packaging application. Stocks thicker than 24pt are often difficult to score, while stocks thinner than 12pt can result in a package that's too flimsy. Apex Die will be happy to help you make your stock selection.

Downstream Operations – Consider how your packaging will be assembled, and by whom. If end users must "square" (open) hundreds of boxes a day, automatic or semi-automatic bottom closure styles such as an auto-lock or sealed-end can save time and aggravation.

Design options – At Apex Die, we can apply various finishing techniques to your package to help it stand out from the clutter. Design and decoration options include…

The Apex Die Advantage
Let Apex Die help you create a package that's successful from all sides - even on bottom. Starting with your requirements, we can take you from design through production, giving you peace-of-mind that your packaging will meet your customers' every need. Give us a call today to get started on your next packaging initiative.