How To Build A Tool Chest | Plans, Sizing & Full Build Order

A tool chest is a rigid wooden case sized around your longest tools, with a lid, internal organizers, and joinery built for rough use.

Building your own tool chest means you control the dimensions, the drawer layout, and the wood quality—and you end up with something that fits your workshop instead of a store shelf. The process is straightforward: mill stock, cut carcass parts, assemble the shell, add organizers, then install hardware. The key decisions come before you cut anything, starting with size and the plan you follow.

What Size Should The Tool Chest Be?

Size the chest around the longest tool you need to store. Historical and current plan references consistently design around long hand saws and rip saws, so measure your saw plate plus handle before committing to a length.

Current published plans give useful reference points, though dimensions vary by design:

Check whether your chosen plan lists internal or external dimensions before you buy lumber—mistaking one for the other is a common and costly error.

Which Plan And Materials Should You Use?

A good plan provides step-by-step instructions, exploded views, a materials list, and a cut list. Some add photos or SketchUp drawings, which help with tricky joinery.

Current plans split between two approaches. Lee Valley’s plan uses frame-and-panel construction with tongue-and-rabbet joinery, traditional hardwood slides, and spring pins that lock the cover and lid—specifying one half sheet of 1/8″ plywood plus 15 board feet of hardwood. Woodworkers Journal’s Triton Tool Chest plan instead calls for 3/4″, 1/2″, 5/8″, and 1/4″ stock in its parts schedule.

Traditional guidance holds that the outside case should be at least 1 inch thick for rough use. Modern plans often use thinner dimensioned stock, so follow the exact material schedule in the plan you choose rather than substituting thicker or thinner wood.

For a woodworker ready to buy a ready-made unit instead, our mechanic tool chest recommendations cover tested steel options with better portability for garage work.

How Do You Build The Chest Step By Step?

The build order stays consistent across plans: mill stock flat and to thickness, cut carcass parts to size, assemble the shell, add bottom and top panels, build drawers or trays, then install hardware and finish.

Start by milling every board flat and to the exact thickness the plan specifies—this prevents gaps at the joints. Cut carcass parts to size, then dry-fit the shell before gluing. Assemble with the joinery your plan calls for, working from the inside out. Add the bottom panel, then build any drawers or trays to fit the openings you’ve created.

Install the hardware last. Follow the plan’s locking method exactly so the lid and cover stay stable when open—an unstable lid is a safety hazard as much as a design flaw.

What Are The Most Common Mistakes?

Three mistakes ruin more chests than bad wood. Making the chest too short for your saws forces a redesign mid-project. Ignoring whether a plan’s dimensions are internal or external leads to parts that don’t fit. And omitting the lid or tool-well depth leaves no room for the organizers you planned.

Substituting hardware or stock thicknesses without redesigning the joinery is the fourth. Changing 1/2″ stock to 3/4″ changes every joint depth, and swapping a spring-pin lock for a friction catch can let a heavy lid fall.

Working with heavy panels and joinery saws means normal woodworking PPE matters—safety glasses, hearing protection, and dust control. Follow the plan’s hardware and locking method rather than improvising.