Board & Box Specifications

The container itself: board grades, flute profiles, structural styles and how a box is dimensioned and certified.

10 references Checked against published standards

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Food Contact Paperboard: There Is No Such Thing as Food Grade The federal rule permits named substances in the food-contact surface rather than defining a grade, and the PFAS change everyone calls a ban was a market exit the agency recorded. Oct 26, 2026 Kraftliner vs Testliner: Reading the Grades Instead of the Fibre Both names are entries in a published grade list, their property floors overlap where nobody expects, and a grade reports a minimum rather than a measurement. Oct 20, 2026 Box Dimensions: Length, Width, Depth and the Allowed Tolerance Why box sizes are inside measurements, why the outside is not simply two calipers more, and how far a correct box may sit out of size. Oct 14, 2026 Box Manufacturer’s Certificate: What the Stamp Actually Certifies What the round stamp on a box flap claims, and the question the published answers disagree about. Oct 8, 2026 Corrugated Basis Weight: Why 42/26/42 Does Not Add Up to 110 Three numbers, and the arithmetic nobody publishes alongside them. Oct 4, 2026 Corrugated Box Styles Explained: RSC, FOL, HSC and FEFCO Codes Four slotted styles, eight FEFCO groups, and the arithmetic nobody publishes. Sep 28, 2026 Corrugated Flute Types: Why the Letters Are Not a Size Order A, C, B, E, F is the real order, and no flute chart is a specification. Sep 21, 2026 ECT vs Mullen: What Each Corrugated Box Strength Rating Means Two certifications, two physical properties, one widely misread chart. Sep 15, 2026 The ECT Grade Chart: What the Weight Column Really Certifies The weight beside a board grade counts what goes in the box, not what the box can hold up. Sep 15, 2026

The other three hubs

Package Testing & Certification 11 references Cushioning & Protective Materials 10 references Palletization & Freight 10 references