You found the magnet. You placed it exactly where you wanted it. You stepped back…

…and it slid down the wall. Or maybe it didn’t stick at all.

If you’ve ever thought, “Why isn’t my magnet working?” you’re definitely not alone. It’s one of the most common questions we hear at Apex Magnets, and thankfully, the answer is usually simple.

Magnets are powerful, but achieving optimal performance depends on choosing the right material, strength, size, and setup for your project.

Let’s troubleshoot.

1. Is the Material You’re Using Magnetic?

Many people assume magnets will stick to anything metal, but magnets are strongest on ferrous metals, which contain iron. A stainless steel refrigerator door, for example, may look magnetic but often isn’t.

Common Magnetic Materials

Non-Magnetic Materials
  • Steel
  • Carbon steel
  • Iron
  • Cast iron
  • Nickle
  • Cobalt
  • aluminum
  • copper
  • brass
  • bronze
  • gold
  • silver
  • lead
  • most stainless steel grades
  • wood
  • glass
  • plastic

Quick test: Try sticking your magnet to a plain steel tool, filing cabinet, or cast-iron pan. If it holds there but not on your project surface, the issue is likely the material itself.

2. Is the Pull Force Strong Enough?

Sometimes the magnet works, just not well enough. This usually comes down to pull force. Pull force refers to the amount of force needed to pull a magnet straight away from a thick, flat steel surface under ideal conditions.

Things that can reduce pull force include:

  • paint or powder coating
  • uneven mounting surfaces
  • gaps between surfaces
  • thin steel
  • vertical mounting
  • weight pulling downward instead of straight outward

How to Estimate What You Need

A good rule of thumb is to choose a magnet with a rated pull force higher than the weight of the object you’re trying to hold, especially if it will hang vertically.

For example:

  • holding a lightweight note → small disc magnet may be enough
  • holding a kitchen utensil or tool → medium pull force
  • holding signage or heavier décor → stronger magnet recommended

When in doubt, size up.

3. Is the Magnet the Right Shape for the Job?

Shape matters more than most people expect.

A small disc magnet may be strong, but it may not create enough contact area for your project.

Different shapes solve different problems.

 

Disc Magnets

Block Magnets

Ring Magnets

Hook Magnets
Best for:

  • crafts
  • closures
  • lightweight hanging
  • small spaces
 Best for:

  • flush mounting
  • larger contact surfaces
  • hidden closures
  • woodworking
 Best for:

  • mounting with screws
  • fixtures
  • mechanical applications
 Best for:

  • hanging tools
  • kitchen organization
  • garage storage
  • seasonal décor

 

If you’re unsure which shape works best, Apex has a helpful Magnet Selector Guide that lets you compare options by size and shape:

Magnet Size & Shape Selector Guide

  1. Is the Magnet Sitting Flush?

Even a tiny gap can reduce magnetic strength. Magnetic force drops off quickly with distance. Many things can weaken the holding power of your magnet including: thick paint, rubber bumpers, uneven wood grain, curved surfaces, and recessed mounting.

How to Avoid These Problems:

  • Mount magnets against a flat surface whenever possible
  • Avoid leaving air gaps
  • Use steel backing plates when needed
  • Make sure opposing magnets align correctly

The closer the magnet is to the metal, the stronger it will perform.

5. Could Temperature Be Affecting It?

Neodymium magnets begin losing performance when exposed to temperatures beyond their rated limit. This usually isn’t an issue for home organization or crafts, but it can matter in workshops, machinery, or outdoor installation in direct sun.

If your application involves elevated temperatures, a different magnet material may be a better fit. Samarium cobalt or a high-heat neodymium magnet will be your best bet for heat tolerance.

Still Not Sure? We’re Happy to Help.

If your magnet isn’t sticking, slipping, sliding, or just not performing the way you expected, Apex Magnets can help you find the right solution. Whether you’re organizing your kitchen, building something in the garage, or working on a DIY project, our team is happy to answer questions and help you choose the right magnet.

Learn More About Magnets

Looking for more magnet tips and ideas? Visit the Apex Magnets blog for DIY inspiration, magnet facts, project ideas, and practical how-to guides. Need help choosing a magnet? Browse our magnet collection or reach out to our team anytime.

 

Safety Warning: Children should not be allowed to play with neodymium magnets as they can be dangerous. Small magnets pose a choking hazard and should never be swallowed or inserted into any part of the body.

Magnets can be dangerous. Neodymium magnets, especially, must be handled with care to avoid personal injury and damage to the magnets. Fingers and other body parts can get severely pinched between two attracting magnets. Bones can be broken by larger magnets. Visit our Magnet Safety page to learn more.