BoxKaki Blog
Box2Pac 250 mm kraft E-flute mailer box buying guide
A source-checked guide to Box2Pac SKU PB-KR-12: 250 x 190 x 90 mm internal size, current bundle price, fit checks and evidence gaps.
Will your product still fit after adding an insert or cushioning? Malaysian online sellers can use this guide to check one identifiable 250 mm box before ordering.
Box2Pac lists one exact 250 mm kraft E-flute mailer: SKU PB-KR-12. The supplier states an internal size of 250 x 190 x 90 mm, natural brown E-flute cardboard and 10 flat-packed boxes per bundle. The listing showed RM45 and in-stock status when checked on 2 October 2026.
BoxKaki has not handled or tested this box. This guide checks the supplier's published specification and shows what still needs to be confirmed before it carries a real product. Read our research methodology for the evidence labels used here.
Quick verdict
This is a practical small-bundle option if your packed item fits inside 250 x 190 x 90 mm with room for any insert or cushioning. The live listing works out to RM4.50 per box before delivery or other checkout charges. Do not infer load capacity, crush strength or moisture resistance from the words "kraft" and "E-flute". Box2Pac does not publish those figures on the product page.
Verified listing details
| Field | Published detail | What it means for a buyer |
|---|---|---|
| Product | 250 mm kraft one-piece die-cut postal mailing box | An identifiable listing, not a generic 250 mm specification |
| SKU | PB-KR-12 | Use this code when confirming the item with the seller |
| Internal dimensions | 250 x 190 x 90 mm, length x width x height | Check the packed product against the usable interior |
| Material | Natural brown cardboard paper, E-flute | The listing does not state liner grade, board thickness, ECT or BCT |
| Pack size | 10 boxes, supplied flat | Suitable for a small trial without a custom production run |
| Observed price | RM45 per bundle | RM4.50 per box by simple division, before unstated charges |
| Observed availability | In stock | A dated observation, so check again before ordering |
Source: Box2Pac product listing, checked 2 October 2026.
What the 250 mm measurement covers
Box2Pac explicitly labels 250 x 190 x 90 mm as the inner dimensions and says all sizes on the listing are internal measurements. That wording matters. FEFCO Recommendation 101 defines corrugated-case internal dimensions as length, breadth and height, in that order. It also defines length as the longer dimension at the opening.
For this SKU, 250 mm is the internal length. It is not evidence of the external parcel size. Measure an assembled sample if a courier limit or shelf space depends on the outside dimensions. The official FEFCO procedure for internal case dimensions explains the convention.
Fit check before ordering
- Measure the product at its widest, longest and tallest points.
- Add the insert, wrap or cushioning that will travel inside the box.
- Check that the packed item stays below 250 x 190 x 90 mm and does not press against the lid or locking tabs.
- Order one 10-piece bundle before committing to a custom run.
- Pack the real product, close the box and repeat the handling conditions you expect during fulfilment.
A bare product measurement is not enough if tissue, dividers or protective padding will be added later.
Protection limits are not published
The Box2Pac page describes the box as suitable for mail order and shipping various items. That is a supplier claim. It does not publish an edge crush test, box compression test, maximum gross weight, drop-test result, liner specification or moisture rating.
Those omissions rule out a general claim that the box can protect heavy, fragile or moisture-sensitive goods on its own. DHL Express Malaysia's June 2025 Express Easy rate card advises sufficient protective packaging for fragile items. Match the cushioning to the product and the carrier journey rather than relying on the mailer alone.
Courier size and billing
Box2Pac gives the box's internal size. A courier may need the assembled external size. DHL Express Malaysia states that Express Easy shipments are charged by actual or volumetric weight, whichever is higher. That is DHL's rule for the cited service, not a universal rule for every Malaysian carrier.
Before quoting delivery cost, assemble the box, measure its outside length, width and height, then use the chosen carrier's current calculator and terms. See the DHL Express Easy Malaysia rate card dated 11 June 2025.
Ready-made box or custom run?
| Route | Published basis | Best used when | Still to confirm |
|---|---|---|---|
| Box2Pac PB-KR-12 | 10 ready-made boxes; RM45 observed; 250 x 190 x 90 mm internal | You need a small trial or plain stock box | Delivery, current stock, board grade and tested load |
| Banway custom E-flute packaging | Custom size; MOQ 500; printing and finishing options listed | You need branded artwork, another size or a production run | Matched quotation, dieline, sample, board grade, lead time and delivery |
Banway's page is a separate custom service, not a price or performance comparison with PB-KR-12. Its custom E-flute listing, checked 2 October 2026, states an MOQ of 500 units and custom sizing. Ask both suppliers to quote the same specification before comparing cost.
Questions to put in writing
- Is SKU PB-KR-12 still RM45 per 10, and what delivery charge applies?
- What are the assembled external dimensions?
- What liner papers, flute thickness and board grade are used?
- Are ECT, BCT, maximum gross weight or drop-test results available?
- Does the seller publish storage or moisture limits?
- Can the seller provide a sample from the same stock batch?
Use the quotation comparison guide and packaging specification checklist to keep answers from different suppliers on the same basis.
Common questions
Is this an exact 250 mm product?
Yes. The reviewed listing identifies SKU PB-KR-12 and gives an internal size of 250 x 190 x 90 mm.
Does RM45 mean RM4.50 per box?
Yes, based on the observed 10-piece bundle price. Delivery and any checkout charges were not stated in the product specification and are excluded.
Can it ship fragile products without cushioning?
The listing provides no test result that supports that conclusion. Pack a sample with the intended insert or cushioning and test the complete pack.
Is the external length also 250 mm?
No external dimensions are published. The 250 mm figure is explicitly internal, so measure an assembled box for carrier and storage planning.
Buying decision
PB-KR-12 is a traceable ready-made E-flute mailer with a useful small pack size and clear internal dimensions. It is a sensible sample candidate for lightweight products that fit after packing. Its structural performance is undocumented, so approval for routine dispatch should follow a packed-product trial and written confirmation of any load or environmental requirement.
