Reserve readable shipping zones
Place case codes, handling symbols, barcodes, destination labels, and compliance text away from joints, tape paths, hand holes, scores, and pallet abrasion areas.
Transit and warehouse packaging
Custom corrugated shipping boxes built around the load path.
Define the case style, inner pack, board construction, closure, route, and pallet pattern together—before treating print as the primary specification.
RSCShipping case option
MailerDie-cut option compared
Inside → outsideDimensions defined in order
Load + routeBoard brief is project-specific
RSC versus mailer
Choose the case style by operation, not appearance.
A regular slotted container and a die-cut mailer create different material flows, closure steps, pallet behavior, opening experiences, and tooling decisions.
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| Decision | RSC shipping case | Die-cut mailer | Procurement check |
|---|---|---|---|
| Primary role | Commonly evaluated as a shipping case, master carton, warehouse case, or grouped-product container. | Commonly evaluated for direct parcel delivery where opening structure and presentation share priority. | State whether the box is the consumer pack, an outer shipper, or both. |
| Case forming | Slotted panels form a rectangular case with top and bottom flaps brought together for closure. | Shaped panels fold into locks, roll ends, dust flaps, or tuck features defined by a die-cut pattern. | Trial the proposed format on the real packing bench or case-forming equipment. |
| Closure | Tape, glue, or staples may be considered according to load, route, surface, equipment, and opening needs. | Mechanical locks may form the case, while seals or tape can still be required for transit security. | Document both case-forming and final-sealing instructions. |
| Cube and pallet fit | Rectangular geometry can be planned around unit count, pallet pattern, stacking, and warehouse handling. | Locks, rolled edges, and mailer proportions can change outside dimensions and pallet efficiency. | Calculate with final outside dimensions, not the product cavity alone. |
| Print role | Handling marks, case identification, barcodes, destination data, and brand graphics can share the panels. | Exterior and interior graphics may support both delivery information and the opening experience. | Map labels, tape, scores, joints, and abrasion zones before artwork approval. |
Do not substitute styles by name alone. Ask for the case code or structural drawing, closure method, dimension convention, and filled sample so competing quotes describe the same pack.
Build a supplier-ready case specification with the free cube and pallet planning tool
Dimension chain
Work from product fit to outside cube.
Inside and outside dimensions answer different questions. The drawing should identify which is being quoted, the order of dimensions, the unit, and the packed orientation.
- Begin with the product, unit pack, inner packaging, loading clearance, and required orientation
- Define the finished inside length, width, and depth after the pack-out is agreed
- Apply the selected board construction, score allowances, joint, and case style to establish outside dimensions
- Use outside dimensions for cube, labels, conveyors, export handling, and pallet-pattern calculations
- Recheck both dimension sets after any board, insert, divider, or product-count revision
Project-specific flute and board
Select construction from exposure, not a generic chart.
Flute profile, liner combination, wall construction, recycled content, coatings, and manufacturing direction interact. Final selection belongs to the actual case and route.
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| Input | Why it changes the brief | Data to provide | Approval check |
|---|---|---|---|
| Packed load | Weight distribution and unsupported spans can load panels differently even when total weight is equal. | Product count, total packed weight, center of mass, contact points, and orientation. | Filled sample inspected in its handling and stacking orientation. |
| Case geometry | Panel length, depth, hand holes, perforations, scores, and joints influence the structure. | Inside dimensions, case style, openings, closures, and any required access features. | Approved drawing plus dimensional sample using the intended board concept. |
| Stacking plan | Stack height, duration, alignment, pallet pattern, and load sharing define the compression exposure. | Cases per layer, layers, warehouse stacking, palletization, and storage duration. | Project test or engineering review based on the agreed distribution condition. |
| Climate and handling | Humidity, temperature changes, wet surfaces, abrasion, impacts, and vibration can alter performance needs. | Origin, destination, route, storage, shipment mode, season, and known handling hazards. | Conditioning and test brief matched to the relevant exposure. |
| Specification language | Buyers and markets may describe corrugated board using different grade, edge-crush, burst, or material conventions. | Customer specification, reporting convention, restricted substances, and documentation requirements. | Supplier specification and records reviewed against the buyer's stated requirement. |
Board callouts are project-limited. A construction approved for one size, load, route, or pallet pattern should not be assumed suitable after those conditions change.
Stacking, humidity, tape
Treat storage conditions as structural inputs.
Compression capacity is not just a board label. Case geometry, load alignment, score lines, pallet pattern, time, humidity, and closure quality affect how the shipping case carries a stack.
- State whether cases are floor stacked, rack stored, palletized, unitized, or handled as individual parcels
- Identify humid warehouses, container routes, temperature transitions, or wet-contact risks in the brief
- Keep product loads and dividers aligned so force is not concentrated on unsupported panels
- Match tape or other closure to the liner surface, dust, temperature, humidity, storage time, and sealer
- Define tape placement and inspect flap meeting after the case is filled, not only when it is empty
Flexographic versus digital print
Choose print after the board face is known.
Artwork detail, versions, quantity, liner color, rub exposure, handling marks, color control, and finishing all influence the useful print route.
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| Print route | Often evaluated for | Tradeoffs to quote | Proofing check |
|---|---|---|---|
| Flexographic | Repeat graphics, handling marks, barcodes, logos, spot-color systems, and direct printing on corrugated liners. | Plate setup, number of colors, screens, registration, small type, board absorption, and design revisions. | Approve the artwork separation and review representative print on the stated liner and board construction. |
| Digital | Detailed art, multiple versions, variable content, test campaigns, or jobs where plate setup is not preferred. | Quoted run economics, color consistency, available sheet size, ink coverage, coating, rub exposure, and converting compatibility. | Approve output on the intended liner, then inspect it after scoring, slotting, folding, taping, and handling. |
Set expectations on the liner
Kraft, white, coated, and uncoated faces change contrast and color appearance. Define the substrate and an achievable reference before signing off color.
Review print after forming
Graphics cross functional panels. Inspect registration and legibility after the case is cut, scored, folded, joined, filled, and closed.
Inner packaging
The outer case cannot correct an undefined pack-out.
Partitions, pads, trays, sleeves, bags, cushioning, and void fill determine how loads reach the corrugated shell and whether products can move or contact each other.
- Define the unit pack and product count before setting the shipping case cavity
- Locate vulnerable surfaces, heavy contact points, protrusions, and required clearances
- State whether inner components arrive preassembled, flat, loose, nested, or already loaded
- Review packing order, removal access, part count, waste stream, and warehouse replenishment
- Test the complete closed pack; an empty case review does not represent the distribution system
Transit-test brief
Test the distribution condition you actually intend.
The test method, sample conditioning, sequence, and acceptance criteria should come from the shipment mode and business risk—not from an unsupported pass/fail claim.
Describe the route
Record origin, destination, shipment mode, parcel or pallet handling, transfers, storage, climate, stacking, and known hazards.
Define the test pack
Use the actual product or an agreed substitute, complete inner packaging, production-intent case, closure, labels, weight, and orientation.
Set method and acceptance
Identify the chosen test protocol, conditioning, sample quantity, sequence, inspection points, product limits, and packaging acceptance criteria.
Link results to revision
Record case dimensions, board specification, inner-pack revision, closure, print, test condition, observations, and any approved corrective change.
Agree authority before testing. The buyer, retailer, carrier, laboratory, or destination market may define different requirements. Confirm which party's method and acceptance criteria govern the project.
Plan internal fit, outside cube, pack-out, and parcel testing for an ecommerce mailer
Pallet pattern
Let the outside case dimensions earn their footprint.
A case that fits the product but wastes pallet area or overhangs the deck can create avoidable handling and stacking problems downstream.
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| Input | Decision it supports | What to document |
|---|---|---|
| Pallet and limits | Usable deck area, height, weight, forklift access, warehouse rack, and destination compatibility. | Pallet dimensions and type, maximum loaded height and weight, overhang rule, and any retailer or warehouse constraint. |
| Case outside size | Cases per layer, rotation, gaps, edge alignment, and use of the available footprint. | Production-intent outside dimensions, dimensional tolerance, bulge allowance, and loaded case weight. |
| Layer pattern | Column alignment, interlocking, load transfer, label visibility, and unit stability. | Cases per layer, orientation by layer, total layers, slip sheets, corner protection, and top treatment. |
| Unitization | Movement control during handling and transit without damaging cases or blocking required labels. | Stretch wrap, straps, edge boards, caps, label positions, ventilation, and unpacking requirements. |
Recalculate after dimensional change. A small case revision can change the layer count, orientation, stack height, and load path. Keep the pallet drawing tied to the approved box revision.
Production control
Make the approved pack traceable.
The purchasing file should connect the drawing, board callout, print, joint, closure, inner packaging, test brief, and pallet pattern to one revision.
- Approve inside and outside dimensions with tolerance and dimension order clearly marked
- Identify case style, material specification, flute direction, joint, print, and closure
- Retain the agreed sample and record any permitted production variance
- Inspect incoming cases for count, dimensions, print, scores, joints, flap meeting, and packing condition
- Escalate product, inner-pack, route, climate, closure, or pallet changes for structural review
Corrugated shipping box FAQ
Questions to resolve before case approval.
Use these answers to align sourcing, warehouse, logistics, artwork, and test responsibilities.
A regular slotted container, or RSC, uses meeting outer flaps and is normally closed with tape, glue, or staples selected for the project. A die-cut mailer uses shaped panels and locking features to create its opening. RSCs are often considered for shipping cases and master cartons, while mailers are often considered for direct-to-customer presentation.
There is no universal grade for every shipping box. Selection should consider internal dimensions, packed weight, unsupported panel span, stacking duration, pallet pattern, humidity exposure, handling route, print surface, and the agreed transit-test brief. Final construction is confirmed for the specific project.
Inside dimensions control product and inner-packaging fit. Outside dimensions include the board construction, folds, and manufacturing allowances, so they affect case cube, labels, conveyors, export cartons, and pallet layout. State the dimension order and unit whenever dimensions are exchanged.
Define the closing method around packed weight, flap meeting, board surface, dust, temperature, humidity, storage time, handling, and the available case-sealing equipment. Tape type, width, length, and placement should be checked on a filled sample under the project's expected conditions.
Flexographic print is commonly evaluated for direct printing with repeat graphics and controlled spot colors. Digital print is commonly evaluated for shorter planning cycles, detailed art, or versioned content. Artwork, quantity, board liner, color tolerance, rub exposure, and total quoted cost determine the project choice.
Document the actual product, complete inner pack, closed case dimensions and weight, shipment mode, handling sequence, stacking or pallet condition, climate exposure, known hazards, chosen test method, sample conditioning, and acceptance criteria. The buyer and relevant logistics partners should agree the brief before testing.
Quote a corrugated shipping box
Start with the closed, filled case.
Send the pack-out, shipment mode, warehouse and pallet constraints, destination, and artwork. Kevin will reply with the dimension, board, closure, print, and test questions needed for a comparable quote.
Still comparing delivery scope? Use the EXW, FOB, CIF, and DDP packaging guide to define the named place, freight, customs, and destination charges.