Building your own garage cabinets starts with measuring the space, cutting plywood or MDF panels, assembling the carcass, adding doors, and anchoring the unit securely to wall studs.
Most garage storage solutions you can buy either cost too much or don’t fit your space right. Building cabinets yourself solves both problems. You control the dimensions, shelf layout, and material quality while keeping the project under a reasonable budget. The full process takes a solid weekend of shop time and requires only basic woodworking tools—no joinery experience needed.
If you’d rather skip the build and compare ready-made options, our roundup of the best cabinets for garage storage covers the top-rated prebuilt units.
Measure and Plan Your Cabinet Layout
Start by measuring the wall space you intend to use. Note the width from corner to corner, the floor-to-ceiling height, and any obstructions like outlets, light switches, or water pipes. Draw a rough sketch showing where each cabinet will sit, then decide on individual cabinet dimensions. A common size for a tall garage cabinet is 24 inches deep, 36 inches wide, and 82 inches tall—but your numbers should fit your specific space and storage needs.
Decide how many shelves each cabinet needs based on what you’ll store. Heavy bins need fewer, sturdier shelves spaced wider apart. Lighter items like spray cans or hand tools work fine with closer spacing. Mark shelf positions on your sketch before cutting anything.
Cut and Assemble the Cabinet Carcass
Use 3/4-inch plywood for the cabinet sides, top, bottom, and shelves. MDF is a cheaper alternative but heavier and more prone to swelling in a damp garage; plywood holds up better long-term. Rip the plywood into your planned widths using a circular saw with a straightedge guide or a table saw. Cut the side panels to full height, then cut the top and bottom pieces to match the cabinet width.
For the cabinet back, use 1/4-inch plywood or hardboard. Dry-fit all the pieces on a flat, level surface. Apply wood glue to the mating edges of the sides, top, and bottom, then clamp the assembly. Check for square by measuring diagonally—the two diagonal measurements must match. Drive screws through the sides into the top and bottom pieces. Pocket-hole screws work well, but standard deck screws with pre-drilled pilot holes do the job just as well.
Build and Attach Cabinet Doors
Cut door panels from the same plywood stock. A full-overlay door—one that covers the entire front face of the cabinet—is the simplest style to build. Measure the cabinet opening and add about 1 inch to both width and height so the door overlaps the carcass on all four sides.
Family Handyman’s plan uses door shims during installation to maintain a consistent 1/8-inch gap between doors. Position the hinges 2 to 3 inches from the top and bottom edges of the door. Pre-drill through the hinge screw holes, attach the hinges to the door, then hold the door in position against the cabinet and mark the hinge locations on the cabinet face frame. Install the hinges on the cabinet side, close the door, and check the gap. Adjust the hinge screws if the door binds or rubs.
| Part | Material | Typical Dimension |
|---|---|---|
| Cabinet sides | 3/4-inch plywood | Full cabinet height |
| Top / bottom | 3/4-inch plywood | Cabinet width minus side thickness |
| Shelves | 3/4-inch plywood | Same as top/bottom width |
| Back panel | 1/4-inch plywood or hardboard | Full cabinet back area |
| Doors | 3/4-inch plywood | Opening size plus ~1 inch per side |
| French cleat (optional) | 3/4-inch plywood | 4-inch-wide strips, full cabinet width |
| Screws for studs | Deck or cabinet mounting screws | 2.5 to 3 inches long |
Mount the Cabinet to the Wall
Never anchor a loaded garage cabinet only to drywall—find the wall studs with a stud finder and mark each one. Position the cabinet against the wall, use a level to check plumb and level, and shim underneath if the garage floor is uneven. Pre-drill through the cabinet back at each stud location, then drive 2.5- to 3-inch screws through the back into the studs. Family Handyman recommends installing a ledger board or French cleat system to share the weight load across multiple studs and make the cabinet easier to lift into place.
If you go with a French cleat: rip 4-inch-wide strips of plywood, cut them to match the cabinet width, then bevel one edge of each strip at 45 degrees. Anchor the wall cleat into studs with 3-inch screws. Attach the matching cabinet cleat to the back of the cabinet, then lift the cabinet onto the wall cleat. The angled surfaces lock together and carry the weight across the entire assembly.
After mounting, test each door for smooth operation. Adjust hinge screws if the door rubs or hangs unevenly. Add handles or pulls, and you are done.
FAQs
Is plywood or MDF better for garage cabinets?
Plywood is the stronger, more moisture-resistant choice for garage cabinets. MDF is cheaper and has a smoother surface but swells badly if it gets wet, which makes it a poor fit for unheated or humid garages.
How much does it cost to build garage cabinets?
The cost varies widely based on cabinet size and material grade. A single 36-inch-wide tall cabinet in 3/4-inch birch plywood typically runs $80 to $150 in materials. Hardware, hinges, and finish add another $30 to $60.
Do I need special tools to build garage cabinets?
A circular saw with a straightedge guide, drill/driver, clamps, and a level cover the essentials. A table saw and pocket-hole jig speed the work but are not required. The basic tool list is the same for most intermediate-level woodworking projects.
References & Sources
- Lowe’s. “How to Build a DIY Garage Cabinet.” Covers measuring, cutting, and stud-mounting procedures for garage cabinets.
- Family Handyman. “Build the Ultimate Garage Cabinets Yourself.” Provides detailed step-by-step plans including ledger and French-cleat mounting.