Uneven Floor? Build PERFECT Shop Cabinets (Easy DIY!)

Video - October 15, 2018

After nearly two years in this garage shop, one problem area kept nagging at me: the cabinet alcove. The original cabinets were tall and deep, which worked fine for long-term garage storage, but not for woodworking. I need quick access, shallow storage, and drawers that actually help instead of hiding things in the back.

So I tore everything out and rebuilt the space from the ground up.

Designing Cabinets for How You Actually Work

The new layout focuses on accessibility and flexibility. On one side, shallow trays sit behind double doors, making it easy to see and grab frequently used items. In many cases, trays are more useful than drawers because nothing gets buried. On the other side, a bank of full-extension drawers provides deeper storage without becoming a black hole. Adjustable shelves round out the system and accommodate Systainers and organizer cases stored two-deep.

The space between cabinet banks stays intentionally open, sized to fit a drill press or serve as a utility zone. While the final dimensions suit my shop, the real takeaway is the approach, not the measurements. These techniques scale easily, even when you’re building shop cabinets with an uneven floor or working in a tight space.

Leveling the Foundation

Before building cabinets, I needed a flat, level base. Concrete floors are rarely level, so each cabinet sits on a custom platform with a built-in toe kick. Using a laser, I measured the slope of the floor and built tapered platforms from 2×6 material to compensate. Once leveled and shimmed, the platforms were stabilized with OSB and construction adhesive, creating a solid but non-permanent foundation that works especially well for shop cabinets with an uneven floor.

Cabinet Construction Without Full Panels

The cabinet cases are built from 3/4-inch Baltic birch plywood. Instead of full backs and bottoms, internal cleats tie the sides together and provide mounting points for drawers and trays. This approach reduces material, keeps the cabinets lighter, and still results in a rigid, durable structure.

Dados and rabbets locate the cleats precisely, and glue-and-screw assembly keeps everything square. Once assembled, the cabinets are secured to both the platforms and the wall.

Drawers, Trays, and Slides

Drawers and sliding trays are built slightly undersized to allow for smooth operation. Simple rabbet-and-groove construction keeps things efficient, while 1/4-inch plywood bottoms float in dados sized for the actual material thickness. Full-extension, low-profile slides ensure everything pulls out completely.

Rather than measuring each slide location individually, spacer blocks index the slides consistently from bottom to top, speeding up installation and reducing mistakes. Once installed, even tight-fitting drawers loosen up quickly and glide smoothly.

Doors That Don’t Get in the Way

One cabinet uses doors instead of drawers, which introduces a common problem: hinge interference. Standard European hinges would protrude into the cabinet and collide with trays, so zero-protrusion hinges solve the issue by keeping the doors completely out of the drawer path.

The doors themselves are frame-and-panel construction with plywood panels and Domino joinery. Chamfers soften the edges, and careful hinge layout ensures clean, predictable alignment.

Tops, Finish, and Final Details

The cabinet tops are built from layered MDF cores edged with solid alder for durability. After trimming, chamfering, and filling nail holes, everything gets finished with Osmo Polyx, a durable hardwax oil that holds up well in shop conditions.

Final touches include adjustable shelving, drawer fronts with applied edging, power strips, and internal organizers that keep everything flexible as needs change.

A Shop That Works With You

This project took time, but it transformed how the shop functions day to day. Storage is easier to access, tools stay organized, and nothing feels buried or forgotten. More importantly, the shop feels intentional.

This isn’t just where work happens. It’s a place to think, build, and recharge. When the space works the way you do, everything gets better.

Hopefully, the techniques used here help you design and build cabinets that fit your own shop, whatever shape or size that might be.

Products & Links

Plain Language Disclosure: I approached Rockler for partnership on this project. They were a perfect fit since they had the hinges and slides I wanted to use as well as the fact that I already owned several of Rockler’s jigs that make cabinet-building much easier. The slides, hinges, and Lock-Align components were provided by Rockler. The jigs were items I already owned. Rockler then paid a fee that funded the production of this video. As always, I don’t let anything into my shop that I don’t want there and I never partner with companies that I don’t believe in. 

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