Macro detail of corrugated cardboard flute

Resources

Packaging knowledge for buyers and packing teams.

Short, practical reference notes on the choices that actually affect what arrives at your customer's door. Written for fulfilment managers, retail operations and industrial buyers.

01 — Guides

Six guides we hand out most often.

These are the conversations we end up having again and again on WhatsApp. Read them first so the call goes straight to your specifics.

Choosing the right corrugated flute
GUIDE-01

Choosing the right corrugated flute

B-flute, C-flute, BC double-wall — which carton construction matches your product weight, stacking pattern and transit cycle.

  • B-flute: rigid, good for printed retail boxes
  • C-flute: most common, balanced cushioning
  • BC double-wall: heavy / long transit lanes
Ref · GUIDE-01
Right-sizing cartons for fulfilment
GUIDE-02

Right-sizing cartons for fulfilment

How carton dimensions affect dimensional weight, packing line throughput and last-mile damage rates.

  • Aim for ≤ 20% void inside finished package
  • Track DIM weight thresholds per courier
  • Stock 4–6 size bands, not 20
Ref · GUIDE-02
Mailer film thickness explained
GUIDE-03

Mailer film thickness explained

Why 60µ, 70µ and 80µ LDPE behave differently on packing lines and through international air-mail networks.

  • 60µ — light apparel, domestic lanes
  • 70µ — multi-piece soft goods
  • 80µ — export, heavier items
Ref · GUIDE-03
Common causes of transit damage
GUIDE-04

Common causes of transit damage

The recurring failure modes we see in returned-damage reports — and the packaging adjustments that typically reduce them.

  • Under-spec flute for stacking height
  • Excess void → product migration
  • Wrong tape grade for cold-chain lanes
Ref · GUIDE-04
Recycled fibre & responsible kraft
GUIDE-05

Recycled fibre & responsible kraft

How recycled-content kraft is sourced, what it changes about your packaging spec and what to communicate downstream.

  • PCR-blend kraft availability
  • Grammage stability across batches
  • Customer-facing claims hygiene
Ref · GUIDE-05
Reading a packaging spec sheet
GUIDE-06

Reading a packaging spec sheet

ECT, Mullen burst, grammage, micron, ISTA — a plain-English walkthrough of the numbers on a typical supplier sheet.

  • ECT vs Mullen — when each matters
  • GSM ranges per packaging family
  • ISTA series 1, 3, 6 reference use
Ref · GUIDE-06

02 — Glossary

Packaging terms, in plain English.

A quick reference for the abbreviations and acronyms that turn up in supplier spec sheets and freight discussions.

ECT
Edge Crush Test — measures stacking strength of corrugated board.
Mullen Burst
Pressure resistance test for corrugated, expressed in psi.
GSM
Grams per square metre — paper / kraft basis weight.
Flute
The wave layer between corrugated liners (A, B, C, E, BC).
Micron (µ)
Thickness of plastic film; common mailer range 50–90µ.
MOQ
Minimum order quantity for a listed standard SKU.
DIM Weight
Volumetric weight a courier uses for pricing.
ISTA
International Safe Transit Association test protocols.
PCR
Post-consumer recycled content used in fibre or film.
LDPE
Low-density polyethylene — common courier mailer film.
Self-seal
Pre-applied adhesive strip for closing mailers without tape.
Void Fill
Material used to fill empty space inside a carton.

Business identity disclosure

Operated by ROFIA TRADE LIMITED

wofneu.com is a static B2B packaging SKU catalogue for listed standard products. Buyers can confirm stock, pack quantity, MOQ and Southeast Asia shipping availability by WhatsApp or email.

Legal entity
ROFIA TRADE LIMITED / 潤寶貿易有限公司
Registration
Company No. 3104908 · Business Registration No. 73560853
Company status
Active · Private Limited Company
Registered office
STORE 02 10/F, THE STAR, NO. 18 YIP SHING STREET, TSUEN WAN, NT, HONG KONG
Public email
contact@wofneu.com
Public phone
+852 5100 9301