Custom Regular Slotted Containers (RSC) Made to Your Size

What is a regular slotted container?

A regular slotted container is the standard shipping carton. It is made from one sheet of corrugated board that is slotted, creased and joined with glue at a single corner.

The four top flaps and four bottom flaps are all the same depth. The two outer flaps are each half the box width, so their edges touch in the middle when folded down.

Nearly every warehouse stocks some version of it. It anchors our corrugated and shipping box range.

Who uses regular slotted containers?

Fulfillment centers use them for picking and outbound cases. Food makers and craft breweries pack cases of jars and bottles for distributors.

Etsy and Shopify sellers reach for them when an order is heavy, such as candles, books or cookware. Smaller orders may suit box styles built for online orders better.

Offices, schools and movers like them for files, supplies and household moves. A few set sizes keep a storage room organized.

Seasonal staff learn the fold in minutes. That helps in the busy weeks before Thanksgiving gifting.

Which board works best for an RSC?

Single wall C flute (about 5/32 in, 4 mm) is the usual pick. It cushions well and handles typical packages and cases.

Choose BC double wall (about 1/4 in, 7 mm) for heavy contents, tall stacks or rough handling. E flute (about 1/16 in, 1.5 mm) suits small cartons that need tight folds, and B flute (about 1/8 in, 3 mm) sits in between.

You can compare every grade in our flute guide for corrugated board.

Can I print on a regular slotted container?

Yes. Many buyers keep the carton plain kraft and add one color for a logo and handling marks. Others print full color CMYK on all four panels, inside and outside.

A white liner gives brighter color than kraft. Matte or gloss lamination, spot UV, foil stamping and embossing are available when a carton needs to look sharp.

Our designers help with layout, and you see a free proof before anything prints. You can also try Design Your Box to place your logo first.

How should I tape and pack an RSC?

Fold the short flaps in first, then the long ones. Run tape down the center seam and a few inches onto each end panel.

On heavy cartons, add tape across each end seam. This keeps the flaps flat and the corners from splitting.

Fill any gap at the top before closing. An empty space lets the lid sag when another box sits above it.

Keep soft goods slightly below the flap line so a box cutter does not nick them. Bottles and jars stay apart with corrugated dividers that fit inside.

What mistakes happen when ordering RSCs?

The most common one is measuring the outside of an old carton and sending that as the inside size. The new box then runs oversize on every side.

Another is choosing thin board for a large carton. Wide panels flex more, so bigger sizes often call for double wall even with light contents.

A third is picking an RSC when the product needs a lid that opens often. Tell us how the box will be used and we will say so. For typical dimensions, see standard cardboard box sizes.

When is another slotted style a better fit?

The RSC is a sound default, but it is not the only option. A half slotted container has flaps on the bottom only, so a separate lid can sit on top.

A full overlap container has outer flaps that cover the full width. That adds strength at the top and base.

Not sure which to pick? Describe the contents and how the box gets handled. We will suggest a style.