Specifications
| Parameter | Details |
|---|
| Box Style | Lock Bottom Mailer Box (self-locking base, tuck-top lid) |
| Material | E-Flute Corrugated Board, single-wall |
| Board Weight | 200–400 gsm outer liner (customizable by application) |
| Wall Thickness | Approx. 1.5 mm |
| Burst Strength | ≥ 200 kPa |
| Max Load | Up to 8 kg recommended |
| Size Range | 10×8×4 cm — 60×40×30 cm; fully custom sizes accepted |
| Printing Method | Offset / Digital / Flexo |
| Print Colors | CMYK 4-color + PMS Pantone matching available |
| Print Surface | Outer and inner surfaces both available |
| Surface Finish | Matte lamination, Gloss lamination, Soft-touch, UV spot |
| Eco Certification | FSC-certified board; ISO 14001 facility; soy-based inks |
| MOQ | 50 units (printed); lower MOQ for unprinted stock — enquire |
| Sample Lead Time | 3–5 business days (structural); 5–7 days (printed) |
| Production Lead Time | 7–10 business days after artwork approval |
| Packing / Shipping | Flat-packed in bulk cartons; qty per carton varies by size |
| Accepted File Formats | AI, PDF, CDR, EPS — 300 dpi, 3 mm bleed |
| Payment Terms | T/T 30% deposit, balance before shipment |
Product Details
The lock bottom design was developed specifically for operations that pack at speed. Because the base interlocks mechanically, your team doesn't need to reach for tape on every box — the structure holds itself closed under load. This makes a measurable difference once you're packing hundreds of orders a day, and it virtually eliminates the inconsistency of hand-taped bases that can fail in transit.
When the box arrive flat-packed, it stacks efficiently on pallets and takes up minimal warehouse space before fulfilment begins. Each unit unfolds and locks in a single motion. For kitting operations or third-party logistics facilities, this kind of assembly simplicity reduces training time and error rate on the packing floor.
Offset printing ensures that color stays consistent from unit 1 to unit 50,000. We use a closed-loop color management system with Xrite spectrophotometry at press to verify density and hue against approved proofs throughout the run. If your brand guidelines specify a Pantone color, we match it — not approximate it. Inside printing is a detail that many brands overlook until they see a competitor doing it well. A single-color brand message or pattern on the interior liner costs relatively little to add, but significantly changes how a customer perceives the care put into their order.
For brands supplying into UK, EU, or major US retail channels, packaging compliance documentation is increasingly a procurement requirement. We hold FSC chain-of-custody certification and ISO 14001 environmental management certification. Material safety data sheets, test reports, and audit-ready documentation are available to established customers. If your retail partner or platform require specific compliance paperwork, contact us before placing your order and we will confirm what we can provide.
Frequently Asked Questions
What is the minimum order quantity for printed boxes?
The MOQ for custom printed lock bottom mailing boxes is 50 units. If you need unprinted stock boxes for testing or internal use, the MOQ is lower — contact our sales team for current stock availability and pricing. For orders of 500 units or above, tiered volume pricing applies automatically.
Can I order a sample before committing to a full production run?
Yes. Structural samples (unprinted, correct dimensions and board weight) are available within 3–5 business days. Printed samples require an approved dieline and artwork file, and are ready in 5–7 business days. Sample costs vary by specification and are typically credited against your first production order.
What artwork file formats do you accept?
We accept AI, PDF, CDR, and EPS formats. Files should be supplied at 300 dpi with a minimum 3 mm bleed on all sides. Our pre-press team reviews every file before production at no extra charge — if there are any issue with resolution, color mode, or bleed, we will contact you before proceeding.
Do you support Pantone color matching?
Yes. PMS Pantone matching is available on all offset print runs. Please provide your Pantone reference numbers when submitting your order or artwork brief. We use Xrite color management equipment at press to verify match accuracy throughout the production run.
Can the inside of the box be printed as well?
Yes. Both single-color and full-color inside printing are available on this box style. Interior print is commonly used for brand messaging, pattern fills, care instructions, or QR codes. Please specify your interior print requirements when requesting a quote, as it affects the dieline setup and pricing.
What certifications do your materials and facility hold?
Our board is sourced from FSC-certified mills, confirming responsible forest management through the supply chain. Our facility holds ISO 9001 (quality management) and ISO 14001 (environmental management) certification. Full documentation is available upon request for import compliance, retailer onboarding, or ESG reporting purposes.
How long does production take after I approve the artwork?
Standard production lead time is 7–10 business days from artwork approval. This assumes files are supplied to specification — if revisions are needed, the clock starts from the revised approval. For urgent orders, expedited production may be available depending on current capacity; contact us to discuss your deadline before placing the order.
