Mailer Box Sizes: The Complete Guide (+ Size Chart)
Standard mailer dimensions, how to measure your product correctly, and why 10mm of empty space quietly doubles your freight bill.
Read guide →Guides written by the people who run the presses.
No fluff, no recycled listicles — practical packaging knowledge from our structural designers and prepress team, answering the questions our buyers actually ask.
All BasicsDesignCost & Logistics
Corrugated Flutes Explained: E vs B vs C vs BC
A practical introduction to common flute profiles and the product details to discuss when selecting a corrugated board construction.
Read guide →Coming Next
Guides currently on the press.
Box Board GSM Guide: 250 vs 300 vs 350 vs 400
GSM is weight, not thickness — and it's the most misused number in packaging. Here's what each range is actually good for.
How to Prepare Print-Ready Files for Custom Boxes
Formats, bleed, dieline layers and black-ink rules — the full checklist our prepress team checks before your job runs.
Rigid Boxes vs Folding Cartons: Real Cost & Perception Difference
Same product, two boxes, two price points. When the upgrade pays for itself — and when it's just money.
Why Print Inside Your Mailer Box (and What It Costs)
The unboxing is your second brand impression. Inside printing costs less than most clients expect — here are real numbers.
EXW vs FOB vs CIF vs DDP: Which Shipping Term to Choose
Who pays for what, where responsibility transfers, and why first-time importers should almost always choose DDP.
How to Read a Packaging Quotation (Line by Line)
Material, print, die-cutting, gluing, packing, freight — what each line means and which ones you can actually optimize.
Reading is step one. Quoting is step two.
Send your product dimensions, quantity and printing requirements. We will review a specification for your custom packaging order.
Request a Custom Quote →