For heavy loads, use a thicker film, around 23 microns or more, apply more passes with firm tension, protect sharp corners, and tie the load firmly to the pallet. That combination secures most heavy pallets. But film has limits, and very heavy, dense or unstable loads may need strapping alongside the wrap, or a machine-applied wrap, to hold consistently. Here is how to choose the film and use it well.
Weight punishes weak wrapping. A film and technique that hold a light pallet can let a heavy one shift, so heavy loads need more material, more care, and a realistic view of what wrapping can do.
Start With a Thicker Film
Thickness is the first decision. A thin film has less material to resist the strain a heavy pallet puts on every wrap, so it is more likely to tear or fail to hold.
For heavy loads, a film around 23 microns is the sensible starting point. It has roughly a third more material than a 17 micron film, which resists punctures and holds more tension. Heavier or more aggressive loads may need a thicker film still. The extra material is what gives the wrap the strength a heavy load demands.
Tie the Load to the Pallet
On a heavy load, this matters even more than usual. Anchor the film to the pallet at the start, then wrap the base and the pallet lip together several times with firm tension. This connects the load to the pallet so the mass cannot slide off as a unit.
A heavy load that is only wrapped to itself, and not to the pallet, is a load waiting to shift, and the weight that makes it heavy also makes it dangerous if it moves. Lock it to the pallet at the base before you build up.
Use More Passes and More Tension
Do not wrap a heavy pallet like a light one. Put extra passes at the base, where the load is anchored to the pallet and where most of the holding force lives. Spiral up with generous overlap, at least half the film width, keeping firm, even tension throughout. Then spiral back down so the load carries a double layer. Add more passes on taller or denser loads.
Test it before it moves: push the top of the load firmly. If it shifts independently of the pallet, add more base wraps and more tension until the load and pallet move as one.
Protect Sharp Points
Heavy loads often have hard corners, exposed metal or timber edges that cut film. Protect them. Edge protectors placed over corners before wrapping spread the force so the film is not cut, and they stiffen the corners of the stack, which helps a heavy load hold its shape through handling. Wrapping straight over a bare sharp corner on a heavy load invites a torn wrap.
Be Honest About the Limits
Wrapping film has limits, and very heavy loads reach them. Film applied by hand gives less consistent tension than a machine, and there is a point where a load is too heavy, dense or unstable for wrapping to secure reliably on its own.
For those loads, stretch film is part of the answer, not all of it. Options include strapping plastic or steel bands around the load alongside the film for rigid or very heavy loads; better stacking and load design so the mass is stable and the film has a sound shape to work with; and a machine-applied wrap where consistent, repeatable tension is needed at volume.
Reaching for a thicker film and more passes is the right first step, and it secures the large majority of heavy pallets. But if you keep increasing thickness and loads still shift, the answer is usually not yet more film but adding strapping or reconsidering the load.
Frequently Asked Questions
What micron stretch film is best for heavy loads?
A film around 23 microns is the sensible starting point for heavy loads, with heavier or more aggressive loads needing a thicker film still. Combine it with more passes, firm tension and edge protection.
Can stretch film hold very heavy pallets on its own?
Up to a point. A thicker film, more passes and edge protection secure most heavy loads. But very heavy, dense or unstable loads often need strapping alongside the film or a machine-applied wrap for consistent holding.
How many wraps does a heavy pallet need?
More than a light one, with the extra passes concentrated at the base. There is no fixed number: wrap until the load and pallet move as one when you push the top firmly.
Do I need edge protectors for heavy loads?
On heavy loads with sharp or hard corners, yes. They stop the film cutting through and stiffen the corners so the stack holds its shape through handling.
Why does my heavy load keep shifting after wrapping?
Usually because the film was not tied to the pallet, or the base wraps and tension were not firm enough. Anchor the film to the pallet and lock the base with several tight passes. If it still shifts, the load may need strapping alongside the film.
Conclusion
For heavy loads, choose a thicker film around 23 microns or more, tie the load firmly to the pallet, apply more passes and tension at the base, and protect sharp corners. That secures most heavy pallets. But be honest about the limits: very heavy, dense or unstable loads may need strapping alongside the wrap or a machine-applied wrap. Match the method to the load, and do not expect film alone to fix a load that needs more.