{"id":5366,"date":"2026-07-17T08:38:14","date_gmt":"2026-07-17T08:38:14","guid":{"rendered":"https:\/\/ppboxy.com\/?p=5366"},"modified":"2026-07-17T08:55:16","modified_gmt":"2026-07-17T08:55:16","slug":"pp-corrugated-sheet-thickness-guide","status":"publish","type":"post","link":"https:\/\/ppboxy.com\/fr\/pp-corrugated-sheet-thickness-guide\/","title":{"rendered":"Guide sur l'\u00e9paisseur des plaques ondul\u00e9es en PP : 3 mm, 4 mm ou 5 mm \u2014 Laquelle choisir pour votre application ?"},"content":{"rendered":"
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When sourcing corrugated polypropylene (PP) sheets<\/strong>, one of the first questions buyers ask is:<\/p>

Should I choose 3mm, 4mm, or 5mm PP sheets?<\/strong><\/p>

The answer depends on what you’re making.<\/p>

A thinner sheet may reduce material costs, while a thicker sheet provides greater strength and longer service life. Choosing the wrong thickness can result in damaged products, unnecessary expenses, or packaging that doesn’t meet your performance requirements.<\/p>

In this guide, we’ll explain the differences between 3mm, 4mm, and 5mm PP corrugated sheets<\/strong> in simple terms. You’ll learn how each thickness performs, where it works best, and how to select the most cost-effective option for your application.<\/p>

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3mm PP Corrugated Sheet: The Foldable One<\/strong><\/h2>

Weight<\/strong>: ~400\u2013600 g\/m\u00b2<\/p>

Plaque ondul\u00e9e en PP de 3 mm<\/strong><\/a> is the workhorse of the PP corrugated world \u2014 not because it’s the strongest, but because it’s the most versatile. At 3mm, the material is thin enough to score with a creasing wheel and fold by hand into a box, tray, or sleeve. No heat guns. No industrial folding machines. Just score and bend.<\/p>

This is why pretty much every foldable PP packaging box on the market starts at 3mm. It’s also why 3mm is the default for e-commerce mailer inserts, produce crate dividers, and lightweight protective sleeves.<\/p>

The trade-off is rigidity. A 3mm sheet won’t stand upright without a frame. If you lean it against a wall as a sign, it’ll bow. That’s not a defect \u2014 it’s physics. At ~400 g\/m\u00b2, there simply isn’t enough material in the cross-section to resist bending across a span.<\/p>

Advantages:<\/strong><\/p>