Custom 6-Vial Kit Boxes

Why a tray usually wins at six

Cutting six separate cavities into a foam block means removing a lot of material, and what is left between the cavities is thin. A tray — moulded, folded or die-cut as one piece — supports across the whole footprint instead, so it holds shape better and uses less material.

The other advantage is loading. Six individual cavities have to be filled one at a time; a tray can be presented to a packing line as a single component. For anyone assembling packs at volume, that difference is worth more than the material saving.

• Better material efficiency — A tray removes less material than six cavities cut into a block.
• Faster loading — One component to place, six pockets to fill.
• More consistent depth — A formed tray holds every vial at the same height, which matters behind a window.
• Cleaner appearance — No thin foam webs between cavities to tear or compress.

Layouts for six vials

• 2 × 3 grid — The default. Compact, stacks well, and the strongest footprint per unit of board.
• 1 × 6 row — A long, slim box that opens like a case. Striking, but the most expensive to ship.
• 3 × 2 with a centre channel — Leaves a strip down the middle for a syringe, leaflet or diluent.
• Stepped tray — Vials set at slightly different heights so all six labels are visible at once when the lid opens.

Typical uses

• Course and protocol packs — Six units representing a defined period of use.
• Retail multi-packs — Six of the same product sold as one unit.
• Practitioner supply — Six vials issued to a clinic, often over-labelled on receipt.
• Sample sets — Six different formulations presented as a range.

Where the six vials will be displayed rather than stored, the presentation formats on the peptide box styles hub are worth reviewing alongside this page.

Weight and structure

Six filled vials concentrated in a small box behaves differently from six vials spread across a case. The structure has to carry the load at the base and resist deflection in the side walls.

• Two-piece lid and base — No glued seam carrying the load. The most reliable structure at this count.
• Rigid magnetic — Same strength, plus a closure that survives repeated opening.
• Auto-lock bottom carton — The folding-carton option that can actually take the weight.
• Sleeve and tray — The tray carries the vials and the sleeve carries the graphics; a genuinely efficient combination at six.
• Book-style hinged — Opens flat to show all six at once — best for presentation-led packs.

Materials

• Rigid chipboard — The usual specification for six-vial kits, wrapped in printed paper.
• Heavier SBS paperboard — Viable for 2ml and 3ml vials with an auto-lock bottom.
• Corrugated board — For six-vial shipping cases rather than presentation kits — E-flute takes print reasonably well.
• Kraft paperboard — A plain, utilitarian look for laboratory and research supply.
• Recyclable paper-based stock — Pair with a folded paperboard tray to keep the whole pack in one stream.

Six filled vials is around the point where board caliper stops being a detail — the caliper and flute guidance explains how it is specified.

Tray and insert options

• Moulded tray — Six formed pockets in one piece, holding every vial at a consistent height.
• Folded paperboard tray — A single die-cut sheet folded into six cells. Recyclable and surprisingly rigid.
• Foam block with six cavities — Still the most protective, and the right choice if the pack is posted on its own.
• Partition grid — Interlocking board strips forming six cells; the cheapest option at this count.

How much movement each of these actually permits, and why that matters more than it sounds, is covered in our note on reducing vial movement with custom inserts.

Printing

• CMYK process — Full-colour artwork across the sleeve, lid and inner panels.
• PMS spot colour — Consistency across a range where a six-pack sits beside smaller counts.
• Inside printing — A printed inner lid facing six vials is a strong presentation moment.
• Printed tray — Position labels or numbering printed onto a paperboard tray.

Finishing

• Matte lamination — Keeps a six-vial box looking calm rather than busy.
• Soft-touch coating — A tactile upgrade on a box the customer holds while using it.
• Spot UV — A gloss highlight over a matte base on the lid.
• Foil stamping — Logo or rule on the lid; the larger lid area at six gives foil more room to work.
• Emboss and deboss — Rigid board holds a crisp impression on a lid this size.

How to order

• 1. Vials and layout — Send a vial and tell us whether all six are identical.
• 2. Tray or cavities — We will price both so the difference is visible rather than assumed.
• 3. Structure — Specified against the loaded weight and how the pack is used.
• 4. Die line, proof, sample — A loaded physical sample is important at this count.
• 5. Production — Printed, cut, assembled and packed.

Artwork guidance

• A 2 × 3 layout and a 1 × 6 layout need completely different lid artwork — settle the layout before design starts.
• If the tray is printed, remember pocket walls will obscure artwork near the cavity edges.
• On a book-style box, the lid artwork is seen upside down when opened; check the orientation.
• Supply the file as print-ready PDF — 3 mm bleed, type outlined, images at 300 dpi.

Quality control

• Tray pocket depth is checked across all six positions, not sampled from one.
• Loaded samples are inverted and shaken.
• Base strength is checked on loaded samples for auto-lock structures.
• Magnetic closures are cycled repeatedly on sample units.
• Colour, registration and count are verified before packing.

Shipping

• A 2 × 3 kit costs meaningfully less to ship than a 1 × 6 kit of the same vials.
• Trays are supplied nested and ready to load.
• Rigid boxes ship assembled with layer protection between them.
• Nationwide delivery across the United States.