Half Slotted Containers

Picture a standard corrugated box, then remove the flaps from the top panel entirely. What's left is a half slotted box: four walls and a bottom with slotted flaps, open at the top for loading oversized, irregular, or heavy contents that don't need — or can't use — a fully folded closure. The open end is typically finished with a corrugated cap, a slip cover, or banding and stretch film once the product is loaded. Because there's no top flap structure to compress or crush, half slotted containers handle bulkier, less uniform loads than a standard box can.

The most common comparison point is the regular slotted container, or RSC — the standard four-flap box style used across most retail and e-commerce shipping. An RSC has matching flaps on both the top and bottom that meet in the center when folded, forming a complete, self-contained closure without any additional hardware.

A half slotted container skips that top closure by design. That trade-off is deliberate: it lets the box accommodate taller or unevenly shaped loads, speeds up loading since there's no top-flap folding step, and pairs naturally with a separate cap or pallet wrap for products that get palletized rather than boxed and sealed individually. If your product ships as a uniform, stackable unit, an RSC is usually the simpler choice — its outer flaps and inner panels meet at the center and lock in place with no additional hardware. If it's oversized, bulky, or loaded onto a pallet before shipping, a half slotted container fits the job better.

A half slotted container isn't the only box style built around a variation on the standard four-flap top. Two others are worth knowing before you settle on an HSC build: the overlap slotted container and the center special slotted container.

An overlap slotted container, or OSC, is close kin to a regular slotted container, but its flaps are cut long enough to overlap at the center instead of simply meeting edge to edge — the same extra-coverage logic as a full overlap box, just applied to a standard slotted case rather than a heavy-duty one. Choose an overlap slotted container when a standard box style doesn't give quite enough crush resistance but a full heavy-duty rebuild is more than the load needs.

A center special slotted container, or CSSC, solves a different problem. Its flaps are cut to different lengths so the load concentrates down the center of the panel rather than spreading evenly. That makes it the pick for product whose weight sits in the middle of the case rather than across the whole base.

Corrugated board handles all three box styles — HSC boxes, OSC, and CSSC — the same way structurally: flute and wall count get chosen against the load, then cut into whichever flap geometry the product needs. The right choice follows the load itself: an HSC for palletized and oversized freight, OSC for denser standard shipments, CSSC for unevenly weighted product, and a full four-flap closure for everything in between. Length, panel count, and how the load actually sits inside the case are what decide which box style earns the job on a given order.

Half slotted containers show up across three common applications:

• Shipping and freight. Palletized loads, bulk shipments, and irregular product runs where a full flap closure would just get in the way. They stack cleanly under stretch wrap and hold up well through freight handling — see our standard shipping boxes for the sealed-box counterpart.
• Industrial use. Machine parts, tooling, hardware, and other heavy or oddly shaped components that need a rigid corrugated shell without a fitted top.
• Appliance packaging. Large appliances are frequently shipped in a half slotted container topped with a separate corrugated cap, since the product itself provides much of the structural rigidity once it's loaded.

Every half slotted container we produce is built to the dimensions of the product going inside it — not pulled from a stock size chart. We work from corrugated cardboard in the flute and strength grade the load calls for, then cut, print, and prototype in New York City before committing to a production run. Custom printing runs from single-color logo stamps to full flexo branding on the exterior panels, so pallet-loaded and freight-shipped product still carries your identity through the supply chain.

Wholesale HSC orders are where this format earns its keep. Because the design is simpler than a full-flap box — fewer die cuts, no top-flap tooling — we can turn bulk quantities faster once a size is locked in, and pricing scales the way you'd expect on a high-volume corrugated run. Tell us the product dimensions, load weight, and how it's palletized, and we'll spec a half slotted container and a cap or wrap solution to match.

Specifying a half slotted carton comes down to four decisions, and they're easier to make in this order:

• Interior dimensions. Start from the product's real footprint and height, not the outer box size you have in mind. Because the top is open, height is the dimension with the most flexibility — the load can sit proud of the walls if the cap accounts for it.
• Board and flute. Load weight and stacking height drive the flute profile and strength grade. A palletized run stacked several units high asks more of the board than the same box shipping as a single unit.
• Closure. Decide early whether the open end takes a corrugated cap, a slip cover, or banding and stretch film, since a cap is its own piece to size and print alongside the container.
• Printing. Single-color logo stamps and full flexo branding use the same box; what changes is press setup, so it's worth settling print coverage before the size is locked.

Send those four along with how the product is palletized, and we'll prototype the container on-site before anything goes to a production run.

What is a half slotted container? A half slotted container is a corrugated box with flaps on only one end — usually the bottom — while the opposite end stays open and is closed afterward with a cap, pad, or stretch wrap rather than folded flaps.

What's the difference between a half slotted container and a regular slotted container? A regular slotted container (RSC) has flaps on both ends that fold together for a complete, self-sealing closure. A half slotted container has flaps on one end only, which suits taller, bulkier, or palletized loads that a standard four-flap box can't accommodate as cleanly.

Do HSC boxes ship flat? Yes. Like other corrugated styles, HSC boxes ship knocked down and get erected at pack-out, so they take up far less space in storage than their assembled volume suggests. If the open end is being closed with a corrugated cap, that cap ships flat alongside them and is sized to the container in the same run.

Can half slotted containers be custom printed, sized, and ordered wholesale? Yes. We size every half slotted container to the product's actual dimensions, print anywhere from a single logo stamp to full exterior branding, and run wholesale quantities once the spec is finalized — all built in New York City, for this box style or any other in our slotted container lineup.