Bunker K1 Van Tool Storage Stacker Box Black – Sold Secure Silver, Stackable, EVA-Lined Drawer, AirTag Compatible

Stack up. Lock down. Make every inch of your van count.

The Bunker K1 Tool Storage Stacker Box is the modular heart of the BUNKER van security range — a heavy-duty steel drawer unit designed not just to protect your tools, but to stack with other K1 units, transforming the available space in your van into a properly organised, fully certified, floor-to-ceiling storage system. For tradespeople who carry a large and varied toolkit and need it accessible, secure, and neatly arranged, the K1 Stacker is the most space-efficient solution in the BUNKER range.

The Stacking Advantage

Unlike fixed-format van boxes, the K1 is engineered to stack securely with other K1 units — locking together into a stable, rigid tower that maximises your van's vertical cargo space without sacrificing floor area. Each unit bolts to the one below using the supplied stacking fixings, creating a unified structure that is anchored to the vehicle floor and behaves as a single, secure installation rather than a collection of independent boxes. It's a system approach to van storage that makes a meaningful difference when you're carrying multiple tool categories across a working day.

A Drawer That Protects as Well as Stores

Each K1 features a deep sliding drawer running on smooth ball bearings — the same effortless, high-capacity drawer mechanism that defines the S1 Slider, rated to a maximum of 300kg. What sets the K1 apart is the thick EVA foam lining inside the drawer — a protective layer that cushions tools against impact during transit, prevents them sliding around on the move, and keeps everything in place exactly where you left it. For precision tools, power tool accessories, or anything that doesn't respond well to being rattled around in an unlined steel drawer, the foam lining is a genuinely valuable feature that most van storage solutions don't offer at this security level.

Sold Secure Silver. Secured by Design.

The K1 Stacker carries the same dual independent certifications as the rest of the BUNKER range. Sold Secure Silver — awarded after rigorous physical attack testing by the UK's leading independent security testing authority — confirms the K1 meets a verified and defined standard of resistance to forced entry. Secured by Design, the official police crime prevention initiative, provides further third-party validation. Together, these certifications give tradespeople, fleet managers, and business owners documented proof of security performance — not a manufacturer's assurance, but an independently tested result.

Locked, Bolted and Trackable

The base unit of any K1 stack is permanently bolted to the vehicle floor using the supplied installation fixings, anchoring the entire assembled stack securely in place. Each individual unit is fitted with a tough integrated security lock — supplied with two keys — that holds the drawer closed under firm, reliable closure. A discreet built-in holder accommodates an AirTag or any Bluetooth trackable device, quietly recording the location of your tools should the box ever be removed from your vehicle. For high-value toolkits, the combination of physical security and digital tracking provides the most complete protection the BUNKER range offers.

AirTag not included.

Built for the Demands of Daily Site Work

Constructed from rigid steel throughout, the K1 Stacker is built to handle the physical punishment of professional daily use — constant loading and unloading, the vibrations of road travel, and the occasional knock that comes with working from a van. At 905 x 473 x 312mm per unit and with a 300kg maximum capacity, each drawer provides serious storage depth for a full category of tools, and the black finish gives the assembled stack a clean, purposeful look inside the van.

The BUNKER System — Built Your Way

The K1 Stacker is fully compatible with the wider BUNKER van vault range. Stack multiple K1 units to maximise vertical space, pair with a T1 Storage Box for secure lid-access storage, or add an S1 Slider for wide-format drawer access — building a fully customised, modular van security system that covers every tool and every category. Whether you're equipping a single van or standardising across a fleet, BUNKER gives you the flexibility to configure your storage exactly as your trade demands.

Key Features:

• Heavy-duty rigid steel construction throughout
• Sold Secure Silver certified — independently tested and verified
• Secured by Design certified — official police security initiative
• Stackable design — locks securely with other K1 units to maximise van space
• Deep sliding drawer on smooth ball bearings
• Thick EVA foam drawer lining — protects tools and prevents movement in transit
• 300kg maximum drawer load capacity
• Permanently floor-fixable — stacking and installation fixings supplied
• Tough integrated security lock per unit — 2 keys supplied
• Discreet built-in AirTag / Bluetooth tracker holder per unit
• Compatible with T1 Storage Box, S1 Slider and full BUNKER van vault range
• Available in black

Specification: Dimensions: 905 x 473 x 312mm (per unit) | Weight: 36kg | Max Capacity: 300kg

Product Code: B800-DBSTB