The Vandal Proof 24”x24” Multipurpose Lock Box is our most spacious security enclosure, designed for heavy-duty protection of electrical, network, and access control systems in the most demanding public and industrial settings. Made from 12-gauge stainless steel and reinforced with an integrated padlock shroud, conduit access, and a removable backplate, this USA-made unit is backed by a 10-year vandalism warranty for long-term peace of mind.
Warranty Guide, Care Instructions & Spec Sheet - See Spec Sheet Tab Below
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The AA-MLB-24x24 is the largest capacity lock box in our line of heavy-duty, vandal resistant enclosures. Designed for high-security applications in correctional facilities, transit hubs, utilities, and industrial plants, this enclosure delivers unmatched durability, flexibility, and interior space. With a 24” x 24” x 4 ⅜” internal capacity, this model supports large-scale electrical, telecom, or access control installations while offering the same legendary protection Vandal Stop is known for.
Product Features:
- Extreme Vandal Resistance: 12-gauge stainless steel construction with TIG welds and de-burred edges offers superior strength and resistance to prying or forced entry.
- Made in the USA: Precision-manufactured using LEED-compliant stainless steel under stringent quality controls.
- 10-Year Vandalism Warranty: Our industry-leading warranty covers all 12-gauge models against vandalism-related damage when properly installed and locked.
- Integrated Padlock Shroud: Welded shield protects padlock from cutters, drills, or prying tools.
- Spray & Drip Deflective Design: Keeps internal components protected from weather, splash, or environmental exposure.
- Removable Backplate: Simplifies wiring and system integration during installation or service.
- Surface Mounted: Pre-drilled with 3/8” mounting holes for secure attachment to walls (hardware not included).
- Conduit Access: Accepts ½” conduit fittings up to 0.8" OD for clean and secure wire routing.
Dimensions & Weight:
- Exterior: 27” W x 24 ½” H x 4 ¾” D
- Interior: 24” W x 24” H x 4 ⅜” D
- Rear Opening: 22” W x 22” H
- Weight: ~51.5 lbs
Material & Finish:
Available in 12-gauge 304L stainless steel or 12-gauge 316L for saltwater or marine environments. All models are finished in a corrosion-resistant Satin #4 stainless steel finish for durability and a clean, professional appearance.
Installation Guidance:
Secure using 3/8” stainless steel anchoring hardware appropriate to the mounting surface (not included). Use ¾” or greater back bracing for added support. For partitions, T-nuts or other specialty anchors may be required. When possible, install back-to-back using through-bolts for maximum strength.
Warranty:
Backed by a 10-year vandalism warranty on 12-gauge models. If the enclosure is damaged due to vandalism during proper use, we will repair or replace it — no competitor offers the same level of protection.
Flexible Applications:
The 24”x24” multipurpose lock box is perfect for securing:
- Large-scale electrical and telecom panels
- Access control systems and emergency hardware
- Secure communication enclosures
- Transit, correctional, or municipal infrastructure
Its size, durability, and removable backplate make this the ultimate enclosure for complex or high-risk installations.
Why Choose Vandal Stop?
Competitor models, such as those from Bobrick or Bradley, often use 16- or 18-gauge steel and offer limited warranties. Vandal Stop enclosures feature true 12-gauge construction and the only 10-year vandalism warranty in the industry. When security, longevity, and reliability matter — Vandal Stop leads the way.
Most of our products are Made to Order. When adding your item to the shopping cart there will be a "stock type" option indicating what is available for this particular item (see screenshot below). If an item is Stocked, a stocked option will appear, otherwise, only the "Made to Order" option will be visible. For our current estimated Production Lead times and related information see our Production Lead Times page for details.
Example Stock Type Selection Screenshot:
