Plan the box before you build the stack.

Start by arranging the tools you want to carry together. Include batteries, chargers, sockets and their existing cases. Measure the longest and tallest pieces, then think about how often you will remove them. A box that technically holds everything can still be awkward if the item you need most sits underneath the rest.

Separate outside dimensions from inside space. Milwaukee’s PACKOUT 48-22-8424 has a listed 19.7 × 13.2 × 4.5-inch interior and includes organizer trays. That is a useful screening reference, not a promise that every item inside that bounding rectangle will fit around the box’s contours, latches and installed trays. Test the intended arrangement where possible.

Keep the storage family explicit. The Milwaukee box is PACKOUT; DEWALT DWST17806 is TSTAK. The TSTAK deep box has a removable tray and connecting side latches. A shared brand name, color or apparent footprint does not establish that two boxes will lock together. Verify any adapter against its own manufacturer instructions before planning around it.

Choose the layout around the journey. Consider the available shelf or vehicle space, the order in which boxes will be opened and how the loaded stack will be handled. A battery platform need not dictate a storage purchase, but storage connections do need their own compatibility check.

Manufacturer photos often demonstrate a box with tools inside. Read the package list separately: these catalog entries are storage products, not filled tool kits. Confirm any weather-rating and load-limit requirements on the exact current product documentation before making them part of your purchase decision.