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Jul 20, 2010 08:02 PM

Magnetic Knife Bar (magnetism question)

Currently I store my knives on a magnetic knife bar mounted inside a cupboard. Like some of you, the addiction results in the need for more storage space. Unfortunately I haven't been able to find any magnetic knife bars 10 inches or under in which to mount on the other two interior walls of the cupboard. The easiest option in my mind is to get a magnetic knife bar as small as I can and then saw off enough of the bar to make it fit and possibly drill a new mounting hole. My only worry is that there may be a degradation of the magnet's strength. Has anyone attempted this? Those with scientific knowledge of magnets and magnetism can help dust the rust off my brain because I can't remember all the physical ways to harm a magnet.

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  1. I'm not sure about magnetizing kitchen knives by storing them with magnetic bars but I'll offer a suggestion. It might be difficult to cut the metal and the magnet.

    Lee Valley Tools (Canadian on-line it!) has a magnetic knife bar with the magnets hidden inside a wooden bar (go to the website to look at the 12K18.90). You could buy a beautiful piece of wood drill out depressions and glue rare earth magnets inside and then secure the wooden bar to your cupboard door. Space the magnets far enough apart so that your knives don't touch. Good Luck

    1. I took my physic quiet some time ago. I am not 100% sure of your concerns. Are you worry that you may de-magnetize or realign the magnetic field of the magnet? You probably don't need to worry about it. It is not easy to do so unless you heat it up hot or bang the heck out of it.

      I think you will have greater problems of cutting the magent which is made out of metal and often brittle. In other words, you need a strong tool to cut the magnet and you need to cut it clean or it will fracture as you cut it. Drilling a hole through a thin magnet seems difficult (if that is what you are thinking) because you may crack it as you drill it.

      1 Reply
      1. re: Chemicalkinetics

        Yes the concerns were of losing the magnetic strength to hold the knives securely. I have a circular saw with a metal cutting blade( it's an abrasive disc, no teeth to make a mess) that I'm sure can cut through it.

      2. I've done it. It works with no adverse effect on the magnet's strength.

        You'll need a way to cut through the magnet. A chop saw with a metal cutoff blade is probably your best bet, although a hacksaw and a lot of patience would do the trick, too. When you're making a new mounting hole, drill through the plastic, not the magnet itself.

        Also - rather than cutting down two smaller knife bars, consider getting a single 18-20" unit and cutting it in half - that way a single cut will give you two new knife bars - one for each side wall of the cabinet.

        1 Reply
        1. re: alanbarnes

          Thanks Alan that's great to know. I thought of doing one longer one also and splitting it into two. Initially I thought I would save money if it didn't work on a smaller one but a larger one should prove to be more economical.

        2. Would mounting it at an angle, rather than horizontally, get round the space issue? Vertically might look good.

          5 Replies
          1. re: Robin Joy

            I have mounted a magnetic knife block upside down underneath my cabinet for my veggie prep area. Works great -- it's out of sight but conveniently within reach. The space underneath a cabinet isn't very deep so I have the paring and utility knives that I use constantly up there rather than long bread knives, santukos and chefs knives. Those are in an in-drawer block along with the non-metal ceramic blades. But I suppose rather than mounting the bar from side to side, you could mount it back to front so there was room for long knives as well.

            Occasionally, a knife that wasn't up there securely (the bolster was on the magnet rather than the flat blade) will fall when disturbed. So I have mine over the mail collection area that also acts as a safety net. Otherwise, it's a great and fully functional arrangement for my space-challenged kitchen.

            I also have a second magnetic bar mounted inside a cabinet door over my meat prep area. In that case, the void created by a panel on the door didn't correspond with the length of the magnetic bar. I mounted the bar on a longer piece of clear plexiglas and then mounted the plexiglas on the deeper margins of the door. Also works great. That one houses my long slicers and a chefs knife and they've stayed secure on the door as it opens and closes.

            1. re: rainey

              Rethinking this, I don't think mounting a bar from front to back would be a good idea. When it's side to side each handle is facing the cook so each one is available to grab easily and securely. If it were front to back the handles would also be front to back and only one would be available and that at an awkward handle.

              I guess this is a solution for short 6" and shorter blades.

              1. re: rainey

                This got me thinking again and so I will have to do a little prototyping and see what can be done with a standard or long length mounted diagonally, low end to the rear of the cabinet and high end towards the front and check on the accessibility issues.
                Thanks all, some good ideas have come up.

                1. re: SanityRemoved

                  would something like this work for you?


                  we had one in my old house and it very good considering our lack of space.

                  1. re: davmar77

                    Although I like that, I have to worry about little hands that by this age should know better (not my children by the way). It took me a bit to finally decide on going with a cupboard interior because it wasn't my preferred method of storage. In the end I decided it would be safer for children and safer for my knives and it would keep me from blowing a gasket over damage to the knives.

          2. Here is a 10-inch model that might work for you:


            If that link doesn't work, just google "RSVP Endurance Magnetic Knife Holder - 10-inch"

            The only space I have for a magnetic knife holder is the side of the cupboard over the sink. It too would only fit a 10" knife holder. I may have to consider the under the cupboard idea. I kind of don't like the idea of reaching in there without looking and don't really wish to have to bend over to look every time I reach for a knife.

            1 Reply
            1. re: John E.

              I haven't committed yet, thanks for the link.