Kaizen Foam Inserts: The Best Foam Cutouts For Tools?

Nothing annoys me more than opening a drawer and watching everything slide around. In one instant, my tool organization was ruined.

Foam inserts are nothing new. Mechanics have been using them for years. I first used them to hold and transport painted miniature figures back when I played Dungeons & Dragons with my friends.

It’s a fantastic idea, but I never thought to use it to organize my tool box.

I should have, and so should you.

Tools arranged in Kaizen foam

What is Kaizen Foam?

Kaizen foam is made by a company called FastCap. Like other foam products, it helps keep your hand tools organized and accessible. However, Kaizen foam sheets are stacked in layers allowing you to get the perfect fit for your tool box. The layers peel away easily to get the correct depth, allowing all your tools sit flush with the top of the foam.

Layers of Kaizen foam board

FastCap originally started on an idea for peel & stick covers for screws.

Since then, they’ve branched out to other adhesive products and organization tools. They also have several Lean Products designed to increase efficiency.

If you’ve had business classes back in college, you’ve probably heard the term ‘Kaizen.’

It’s a Japanese word describing a philosophy for “continuous improvement” at every level of an organization and finding efficiencies wherever possible.

Keep that concept of finding efficiencies in mind as you read the rest of this article.

FastCap Kaizen Layered Sandwich Foam Sheet (Black/Red)
$101.99 $72.38
  • 2 foot by 4 foot, 57mm-thick sheet of foam provides plenty of material for any shop; Dimensions (L x W x H): 49.8 x 25 x 2.8 inches
  • Layered design lets you peel away 1/8-inch at a time to fit your drawer depths and tool sizes
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03/24/2023 04:29 pm GMT

Choosing the Right Kaizen Foam Sheets

Kaizen foam comes in large 2′ x 4′ sheets that need to be cut to size. The only difference is in the depth of the sheets and the color.

There are only two color options: solid grey and grey with white foam underneath. The grey\white foam will look grey on the surface, and the white will show through when a tool is missing.

Kaizen foam colors

I went with the grey foam, but I’d likely choose the grey\white combination if I had to do it again.

It makes it easier to instantly see when a tool is missing, and the white shows fewer imperfections than the grey.

You want to choose the foam width that matches your tool drawer’s width. If you have a different size, it’s possible to filet the foam to trim off the excess, but it’s not that easy (or neat) a process.

I know this because I ordered the wrong size and had to trim it down. It worked, and you can’t tell once the foam is in the drawer, but it was messy.

Tools You’ll Need to Cut Kaizen Foam

I hate the “””specialized tools””” that companies want you to buy with their product.

They’re usually nothing more than a cash grab to add some high-margin accessory to your purchase.

This time, they’re actually beneficial.

Tools you need to cut Kaizen foam

The knife is a standard utility knife with a snap-off blade that extends several inches outside the handle. It’s identical to the same utility knife you have in your toolbox now.

The only requirement for your knife is to have a blade that extends out farther than the height of the tool you’re cutting a hole for.

That usually means at least an inch to an inch and a half.

If you DON’T have a good utility knife with an extending blade or an old knife with a dull blade, this is a good, inexpensive alternative for custom cutting Kaizen foam.

The long nose marker is a must-have.

It’s available in black, silver and gold. I’d go with the silver because it shows up better on the grey foam than black.

Don’t worry about how it will look once you finish. The marker can easily be wiped off with a damp cloth after cutting.

The marker is double-sided, although you’re never going to use it. The long-nose side extends 1 1/8th inch past the marker so you can press it against the tool.

I highly recommend the marker because It’ll make your job much easier.

FastCap Kaizen Long-Nosed Marker
$9.00 $8.44
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03/24/2023 01:34 pm GMT

How to Cut Kaizen Foam to Achieve Maximum Organization

By this point, you’ve picked the proper depth of foam, it’s arrived, and you’ve got your tools ready.

Time to start!

Step 1: Measure your drawer

Since Kaizen foam comes in long sheets, you’ll need to cut the foam to fit your drawer.

Measure your drawer

If you’ve already got a rubberized mat on the bottom of your drawer, remove it. The foam will sit flush on the bottom of the drawer, so you don’t need it anymore.

Since my Gladiator Premier GearDrawer didn’t have 24″ drawers, I had to make two cuts in the foam (already there are wasted pieces).

No big deal, just extra work on the first step. I’d be surprised if your tool case wasn’t the same way.

Step 2: Cut the Kaizen foam to fit

To make the cuts:

  1. Measure off the width of the inside of your tool drawer.
  2. Make two marks on the Kaizen foam at those lengths – one on each side.
  3. Take a long level or ruler and trace a straight line between the two.
Cut kaizen foam to fit

When you make your cut, the first thought is to make a shallow cut at first, just to be sure you’ve got the line straight.

Don’t do that.

Trust that the line you’ve drawn is straight (you used a straightedge, after all), and just go for it. Cut the whole way through the foam.

The reason is that you’ll get a much cleaner cut if you cut all the way through the foam once instead of trying to saw your way through it bit by bit.

Do not use a utility knife

This is where the extending blade comes in handy. This is also where I learned not to use a utility knife with a dull blade. Yup…that edge is going at the back of the drawer.

Step 3: Test fit the foam in the drawer

This isn’t a step by itself, but you’ll want to test fit the Kaizen foam in the drawer before you put all the work into cutting around your tools.

The foam should fit snugly in the drawer and not overlap anywhere.

Cut foam to fit

Step 4: Trace your first tool

I recommend starting at one of the corners and with as simple a tool as possible. Leave the screwdrivers, wrenches, and ratchets for later, once you know how to make your cuts.

I started with a small Craftsman level, which is almost entirely rectangular, except for the sloped edges.

When drawing your outline, hold the marker completely straight up and down to get as tight a shape as possible.

Trace your first tool with the marker

Step 5: Make your first cut

Here’s another place where the extending blade comes in handy. You’ll want to cut just as deep as it takes to let the tool sit flush with the top of the foam.

A good way to do that is to lay the tool on its side and extend the knife blade as far as I need.

Cut as deep as the width of the tool

This lets me cut right to the blade guard and get a consistent depth all the way around.

Be sure to cut inside the lines, so there’s a tight fit.

Cut inside the lines

Step 6: Pull out the excess foam

The layered foam makes this step easier, which is the big selling point of Kaizen foam over anyone else.

You want to dig your fingers as deep as you’ve made your cuts. You’re not pulling all of the layers out at once, rather than individually.

Pull out the foam

Once the foam separates, pulling out the entire piece is effortless. In the whole drawer, I didn’t have any pieces that broke apart other than where I cut them.

Once the main piece is pulled out, take a moment to check the edges and clean up any lines and stray bits of foam in the bottom of the hole.

Step 7: Clean up

Clean up the edges

The FastCap marker is easy to clean up with a damp cloth. You can use the markers as much as you need and still make it look perfect.

The finished result

Step 8: Repeat…

Cutting the perfect spot for that single tool took about 15 minutes from start to finish.

More intricate tools will obviously take longer, but you can’t argue how cool it looks when you’re done.

Drawer organized with Kaizen foam

Tool Box Organization Tips & Tricks

I like to keep it honest here. There are a lot of home improvement projects that are a lot of fun.

This isn’t one of those projects.

  • Always buy more than you need. You’ll have wasted pieces or find other places where you want to use them.
  • Their long tip marker is actually worth it.
  • Their knife is ONLY worth it if you don’t have another thin utility knife, preferably with snap-off blades. Box cutters or utility knives are horrible for this.
  • Take pictures of a couple different layouts. It’s a great reference tool while cutting and lets you try different options side-by-side.
  • You’re never going to cut a straight line all the way through, so you better have a sharp blade.
  • Hold the marker straight up and down. If you hold it at an angle, you’ll cut too small a hole and your tool won’t fit.
  • Always make minor adjustments. Don’t cut too much at once.
  • When you’re pulling up the foam after you cut, try to keep the first plow intact. It’s easier to pull up in one big chunk, and…
  • You can filet the cut foam and use it as a base if you want a smooth bottom to the tool cavity.
  • All those videos showing how easy it is to cut the foam are complete BS. Remember that those videos show people who do this for a living and have done it hundreds of times. You’re going to struggle.

Kaizen Foam Alternatives

FastCap doesn’t make the only tool organization foam.

A couple of the more popular alternatives are Shadow Foam and Kaizen Inserts. I’ll explain each briefly and why I went with Kaizen Foam from FastCap.

Shadow Foam is based in the UK but ships worldwide, so it didn’t bother me. What I liked about them is that they have several different color options (blue, red, black, grey, purple, green, orange, and yellow). If you’re going for a specific color scheme in your garage, you can keep that going even in your tool drawers.

While the colors are fantastic, I’m going for a more subtle look in my garage. Also, they didn’t have the same layered foam that FastCap does, so Shadow Foam looked a bit harder to use than Kaizen Foam.

Kaizen Inserts looks to use the same foam that FastCap does. Still, I included them on the list because they have some really cool tools like the Kaizen Holester that helps to cut symmetric finger holes in your foam sheets.

Their combined “Kaizen Cut Kit” seems too expensive for what you get, but the Holester seems like a great idea.

The Verdict

I’m thrilled with my Kaizen foam drawer. My tools are much more organized than before and they don’t slide around when I open and close the drawer.

It’s easy to see when a tool is missing, although the grey\white foam would be even easier. If I had the choice again, I’d go that route instead.

The process isn’t as easy as all the videos on YouTube make it seem, but remember that those people have been doing this dozens or hundreds of times.

Even though it may not be as easy as advertised, it’s an incredible way to keep your tools organized. I highly recommend FastCap Kaizen foam for anyone, not just tool guys.

FastCap Kaizen Layered Foam Tool Organization Sheet (black)
  • Kaizen 919087 Shaping Foam Width 2 ft x Length 4 ft x Thickness 1 1/8" Black
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03/24/2023 09:29 am GMT
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Tim Wells

Tim Wells, the founder of Garage Transformed, has been featured in dozens of home renovation publications, including BobVila.com, Home Stratosphere, House Digest, Livingetc, and SFGate. Since 2018, he has helped over two million people transform their everyday garages into something they can be proud of. He lives in Central Florida with his wife and bulldog.