Modular tool storage lets you build a system that grows and adapts as your needs change. Stackable, click-together units connect into a single carry system and separate when you need to bring just part of your kit to the work area. If your kit changes from job to job, modular storage is the most flexible option. Choose from PACKOUT, TOUGHSYSTEM, MAKTRAK, MODBox, STACK PACK storage and more.
Stack It, Connect It, Carry It
The core idea behind modular storage is simple: units snap or lock together so the whole stack travels as one piece. Rolling carriers handle the weight so you're not lifting everything by hand, and individual units disconnect from the stack when you need to bring just one section to the work area. For tradespeople who do different types of work on different days — or work on multi-trade crews where your kit needs to adapt — this is a more practical approach than carrying one large bag that holds everything all the time.
DeWalt's TOUGHSYSTEM 2.0 is one of the most widely used modular systems in the trades. Units are IP65-rated for dust and water resistance and built from impact-resistant materials. The system includes deep tool boxes, shallow organizer trays, rolling carriers, and small parts cases — all in a consistent footprint that stacks and connects.
Build Your System to Fit Your Work
Modular storage works best when you treat it as a system rather than individual pieces. Start with a rolling carrier and one or two boxes that cover your most common kit, then add organizers and specialty cases as your work demands it. Because all the units in a given system connect to each other, you can add pieces over time without replacing what you already have.
Beyond Milwaukee and DeWalt, other brands offer modular storage in various configurations — stackable open bins, rolling cart systems, and modular panel boards for hand tools. Compare systems and find the right starting point for your operation.
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Frequently Asked Questions
Modular tool storage is a system of stackable, connectable units that lock together for transport and separate when you need just part of your kit. Modules typically include tool boxes, organizer trays, and small parts cases.
TOUGHSYSTEM 2.0 is DeWalt's modular storage system. Units connect and stack using a top-connect feature and are IP65-rated for dust and water resistance. The system includes tool boxes, organizers, small parts cases, and rolling carriers.
PACKOUT is Milwaukee Tool's modular storage system. The units stack and lock together using Milwaukee's PACKOUT connection points, so the whole stack travels as one piece. The system includes rolling tool boxes, medium and large tool boxes, organizers, totes, and mounting plates for vans and trucks.
Compatibility depends on the brand and system. Units within the same system (like TOUGHSYSTEM 2.0) are designed to connect. Units from different brands generally do not connect. Check product pages for compatibility details.
Makita's modular lineup includes tool boxes in multiple sizes, parts organizers, rolling carriers, and carry cases. Units are available in a consistent footprint that stacks and connects across the system.