When your product needs a box that loads from one end and stays open for display, storage, or easy access, the half box is the workhorse solution. VSL Packaging manufactures custom half slotted containers in corrugated board — single wall, double wall, and triple wall — built to your exact interior dimensions. Whether you are shipping industrial components from a New York warehouse or staging retail displays across a national chain, we cut, score, and print every run in-house at our facility so lead times stay short and quality stays tightly controlled from raw board to finished carton.
A half slotted carton has flaps on one end only. The bottom is fully closed and glued or stitched for strength; the top is left completely open. That single architectural difference is what makes this style practical for applications where a lidded box would slow down picking, stacking, or visual merchandising. Workers can drop products straight in from above without fighting with interlocking flaps, and the open top allows supervisors on a warehouse floor to verify contents at a glance.
Compare that to the regular slotted container, which closes on both top and bottom with interlocking flaps. The RSC is the default choice for sealed parcel shipments, but it is the wrong tool when you need to stage or rotate stock quickly, run an open display, or give warehouse pickers fast access without cutting tape on every unit. The half slotted form trades one closure for workflow speed — a deliberate engineering decision, not a compromise. VSL Packaging can produce both styles and will help you choose the right one based on your actual handling environment, stack configuration, and whether the carton will ever face a consumer directly.
VSL Packaging produces corrugated dw half slotted cartons — double-wall board — for applications that demand extra rigidity or stack height under load. Double-wall construction sandwiches two fluted mediums between three liners, nearly doubling the edge crush test rating of a comparable single-wall sheet. That matters when you are palletizing forty units high in a cold-storage facility or shipping heavy automotive components cross-country. Single-wall B-flute and C-flute remain the standard for lighter retail and display uses where cube efficiency matters more than brute strength.
Liner options include natural Kraft, mottled white, and clay-coated sheets. Mottled white and clay-coated surfaces accept flexographic and digital print with higher color fidelity, making them the right choice when the open-top box will face a consumer directly on a retail floor or in a club-store display. For plain brown industrial runs, unbleached Kraft keeps cost predictable without sacrificing compression strength. Board grade and liner combination are finalized during the specification review and reflected in the formal quote — there are no hidden material upgrades billed after production starts.
Every custom half slotted container is measured by interior length, width, and depth — the dimensions that actually matter for the product going inside. VSL Packaging manufactures to a standard tolerance of plus or minus one-eighth of an inch on all three axes, which is consistent with corrugated industry norms and tight enough for most automated packaging lines. If your application requires closer tolerances — certain precision electronics trays, for example — flag that during quoting and our engineering team will assess feasibility on the specific board grade.
Ordering minimums vary by sheet size and print complexity but are kept as low as practical for a corrugated manufacturer. Small-batch production runs using digital print require no plate investment, which is one reason brands testing a new SKU in a regional market often start with a short digital run before committing to a high-volume flexo order. Larger volume orders benefit from per-unit cost reductions achievable only on our high-speed flexo lines, where plate amortization drops to a small fraction of total cost. Both paths go through the same engineering review, board-grade verification, and inline quality checks before cartons leave the building.
A half slotted box with cover pairs the open-top tray with a telescoping lid — a separate corrugated sheet that drops over the top and overlaps the sides by a set depth. This two-piece configuration is used in pharmaceutical distribution, archival storage, and gift presentation where the contents need protection in transit but the box also needs to open and close repeatedly without destroying the structure. The lid depth is specified independently of the tray depth, so you can design for a shallow dust cover or a deep lid that doubles as a secondary shipping enclosure.
Half containers used in retail display contexts are sometimes produced without a lid entirely and instead include internal dividers, pads, or partitions die-cut from the same board grade as the tray itself. VSL Packaging can produce those components in the same production run, which keeps tolerances consistent — inserts sourced from a different vendor's sheet stock can vary enough in caliper and flute height to shift product inside the tray during a long transit leg. Keeping all components under one roof at our New York facility eliminates that variable and simplifies the vendor relationship.
New product formats start with package prototyping at VSL Packaging's New York facility. Our structural engineers build a physical sample from your dimension spec and board selection before any tooling is ordered. You receive a functional prototype you can actually load, stack, and drop-test — not a PDF rendering. That physical sample stage catches fit problems, board-grade mismatches, and print alignment issues before they become production defects. It is standard practice for any new die-line, not an add-on service.
Once the prototype is approved, the die and printing plates are made in-house. Production runs on our corrugator and converting lines, with inline quality checks at each stage — sheet weight, caliper, printing registration, and glue bond. Finished cartons are strapped on pallets or shipped flat in bundles depending on your receiving dock setup. For clients managing multiple SKUs, we maintain digital die files and print files so reorders go straight to the press without repeating the engineering cycle.
VSL Packaging serves manufacturers, distributors, retailers, and fulfillment operations across the northeastern United States and ships nationally. If your packaging requirement involves a half box in any board grade or print style, the right starting point is a conversation with our sales engineering team — bring your interior dimensions, your annual volume estimate, and any existing samples you want to reference.
A half slotted carton has manufacturer's joint and flaps on the bottom end only — the top is fully open. A regular slotted container closes on both ends with interlocking flaps. Use the half slotted style when you need open-top access for picking, display, or stacking; use an RSC when the box must be sealed for shipping without a separate lid.
Yes. We produce corrugated dw half slotted cartons in double-wall construction for loads that exceed single-wall ECT ratings. Common applications include auto parts, industrial hardware, and products that must survive tall pallet stacks in warehouse environments. Board grade and flute combination are specified at quoting based on your product weight, stack height, and shipping conditions.
Yes. A half slotted box with cover is a two-piece set: the open-top tray plus a telescoping corrugated lid that overlaps the sides. We produce both pieces in the same production run to keep tolerances consistent. Lid depth is specified separately and can be shallow for dust protection or deep for full-enclosure shipping. Half containers without lids are also available when the application is strictly display or warehouse staging.
Provide your interior dimensions (length, width, and depth), estimated annual volume, and any special requirements such as print, coating, or insert components. If you are developing a new format, we recommend beginning with package prototyping — our engineers will build a physical sample so you can test fit and function before committing to tooling. From there, the process moves to die production and a full production run. Contact VSL Packaging's sales team in New York to initiate a quote for any custom half slotted container project.