DIY Projects How-To March 18, 2026 2 min read Updated March 2026

How to Build a Garden Tool Storage Cabinet

A wall-mounted garden tool storage cabinet protects your tools and keeps the shed organized. This guide covers the full build from carcass to finish.

A garden tool storage cabinet keeps your shed or garage organised, protects tool handles from moisture, and means you spend less time hunting for the right implement. This guide walks through building a simple wall-mounted cabinet from plywood and solid timber — no fancy joinery required, just straight cuts and screws.

What You Need

For a cabinet roughly 900mm wide by 1200mm tall by 300mm deep, gather: one sheet of 18mm plywood, 25mm timber battens for internal rails, a length of 1x4 cedar or pine for the door frame, exterior wood glue, 50mm coated screws, a piano hinge, and a simple hasp latch. Optional: pegboard for the interior back and S-hooks.

The Build Process

Start with the carcass — four outer panels and a back. Cut the two side pieces first, then the top and bottom. Assemble with glue and screws at each corner, checking for square before the glue sets. Attach the plywood back panel to stiffen the whole unit. Sand the exterior faces to 120 grit before finishing.

For the interior, attach horizontal battens every 200mm where you want long-handled tools to rest in loops of bungee or webbing. Mount a pegboard sheet to the inside of the door for small-tool storage. A single piano hinge runs the full height of the door and keeps it from racking over time.

Finishing for Outdoor Durability

If the cabinet will live in a covered outdoor space, seal all exterior faces with two coats of exterior oil or water-based satin. Pay particular attention to end grain on the plywood panels, which absorbs moisture fastest. For interior faces, a single coat of water-based primer is sufficient.

Wall Mounting

A cabinet this size, fully loaded, can weigh 30kg or more. Mount directly into wall studs or use solid masonry fixings. Position the top two fixing points within the cabinet upper corners, and add a third point at the base. Level carefully — a tilted cabinet may cause the door to swing open or closed on its own.

FAQ

Can I build this from untreated pine?

Yes, for a covered outdoor space. Untreated pine holds up well when sealed and kept out of direct rain. If the cabinet will be exposed to weather, use cedar or marine plywood instead.

How do I hang long-handled tools like spades?

Mount pairs of rubber-coated hooks at 45 degrees so handles rest at an angle. Alternatively, cut notches in a horizontal batten so handles slot in vertically.

What is the easiest wood finish for a beginner?

Water-based exterior satin varnish. It goes on easily with a brush or roller, dries in two hours, and cleans up with water.

How long will it last?

A well-sealed plywood cabinet in a covered space should last fifteen years or more. Inspect the seal annually and touch up anywhere the finish looks dull or beginning to peel.

Does it need ventilation holes?

Not essential, but helpful. Drill a few 12mm holes at the top and bottom of the back panel to allow air movement and reduce condensation on metal tool heads.

See also: DIY Potting Bench Plans for Small Spaces and How to Protect Outdoor Wood Naturally.

Last updated March 26, 2026

Keep reading