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Half-BuiltIntermediate2026-03-12

Modular Workshop Cart (Half-Built Edition)

I built the bottom half of this exact cart and have been using it for three months. The top shelf and the drawer? Still on the to-do list. Here's the half I built, documented honestly, in case you want to copy it.

Status: Half-Built

I built half of this and stopped. The half I built is documented honestly. The other half is your problem (and that's the whole point).

At a glance

Time
I built it in about 8 units. The whole plan would be ~14.
Difficulty
Intermediate

Why it fits an ADHD brain

Modular by design. Each subsystem (base, top, drawer, middle shelf) is its own project, so you can build until your interest runs out and have a completely usable thing at every stopping point. This is the model for how to design for our brains: every milestone is also a finish line.

Tools you'll need

  • Drill/driver
  • Pull saw or circular saw
  • Combination square
  • Tape measure
  • Sandpaper or block plane
  • Four caster wheels (the part I almost forgot to buy)

Materials

  • 3/4" plywood (birch or pine)Half sheet (4'x4')

    Most home centers will rip a sheet down for free if you ask. I always ask.

  • 2x2 hardwood or pine for legs4 legs at ~30" each
  • Heavy-duty caster wheels (locking, 3" or larger)4

    Buy good ones. The cheap ones make the cart wobble and wreck the project.

  • 2.5" wood screwsBox of 50
  • Wood glueSmall bottle

The build, broken into units

Each step is one focus burst, give or take. Stop whenever your brain says stop. The clamps will hold the line.

  1. 1

    BUILT — Cut all four legs to length

    I went with 30" legs because that put the bench top at a comfortable working height for me. Adjust to your own elbow height. Cut all four at once for consistency.

    ~1 unit

  2. 2

    BUILT — Cut the bottom shelf

    I cut the bottom shelf from 3/4" plywood at 18"x24". Big enough to hold my benchtop planer and a bin of scraps. Sanded the edges so I wouldn't cut myself reaching in.

    ~1 unit

  3. 3

    BUILT — Attach legs to the bottom shelf

    Set the shelf on the bench upside down. Position each leg in a corner, drill pilot holes, run two screws through the shelf into each leg. Add a dab of glue if you're feeling fancy. The legs are now attached and the cart's basic geometry is set.

    ~2 units

  4. 4

    BUILT — Install casters

    Flip the whole thing over so the legs point up. Center each caster on the bottom of each leg, mark holes, drill pilots, screw them in. Make sure at least two of the four casters lock — three is even better. This is the moment the project becomes a *cart*. Very satisfying.

    ~1 unit

  5. 5

    BUILT — Cut and attach the top shelf (no edge-banding yet)

    I cut a top shelf at the same 18"x24" and screwed it to the top of the legs from above. No edge-banding, no fancy joinery. Plywood edges exposed. Functional, ugly, mine. This is where I currently stopped.

    ~2 units

  6. 6

    TODO — Add a middle shelf (optional)

    I marked where I want the middle shelf to go but never cut or installed it. It would hold tools that I currently stack on the bottom shelf. I keep meaning to do this. I keep not doing it. The cart works fine without it.

  7. 7

    TODO — Build the drawer for hand tools

    The original plan had a shallow drawer on rails between the top and middle shelf. I have not built this. I have a drawer slide kit in a box somewhere. If you want to build the drawer, I'd love to see it.

  8. 8

    TODO — Edge-band or chamfer the plywood edges

    The plywood edges are still bare. I will get to them. (Reader, I will probably not get to them.) If you want to do this part, iron-on edge banding is the easy route. A 45-degree chamfer with a router is the prettier route.

Honest notes

The stuff most plans leave out. What broke. What helped. What I wish someone had told me.

  • The whole point of this plan being on the site is to model that 'half-built' is allowed. I have used this cart in the shop every single day for three months. It is one of the most useful things I have ever made. It is also not finished. Both things are true.
  • If you only build the bottom half (legs + bottom shelf + top shelf + casters + nothing else), you have a totally functional rolling tool cart. That alone is worth the project.
  • I underestimated how nice locking casters would be until I had them. Get the locking kind, not the cheap freewheelers. You'll thank me when you're trying to drill into something on the cart and it doesn't roll away.
  • If anyone reading this builds the drawer and middle shelf and sends me photos, I will absolutely add them to the post and credit you.

Make the first cut.

You don't need to finish today. You don't need to finish at all. Just get the wood on the bench and the saw in your hand.