Hollon B3500 B-Rated In-Floor Foundation Safe
Hollon Safe Company
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- Price: $946.00
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PRODUCT DESCRIPTION
Hollon B3500 B-Rated In-Floor Foundation Safe
The Hollon B3500 Floor Safe represents the largest capacity model in the B-rated floor safe lineup, engineered specifically for concrete foundation installation in residential garages, basements, and commercial facilities. Offering maximum depth and volume, this heavy-duty concealed vault provides high-level B-Rating burglary defense while mounting flush into concrete floors to remain completely hidden from view beneath mats or floor coverings.
Constructed to withstand intense physical intrusion and drilling, the B3500 features a massive 1/2" thick solid steel door, a drill-resistant hardplate protecting the lock, and a full-length dead bar along the hinge side. Lockout security is anchored by a commercial-grade UL Listed Sargent & Greenleaf (S&G) Group 2 combination dial lock, backed by an external relocker and a spring-loaded internal relocking device that secures the vault during forced entry attempts. Equipped with 5 solid steel locking bolts, a durable powder-coated finish, and an air-spring bar hydraulic door assist for effortless lifting, the B3500 provides high-capacity, hidden protection for high-value assets.
Key Security & Design Features
- Maximum Capacity In-Floor Design: Designed for direct encasement in concrete foundations, delivering the largest storage volume in the B-rated series while keeping contents fully concealed.
- 1/2" Solid Steel Door: Precision-engineered solid steel door plate offers robust defense against impact, prying, and heavy tools.
- UL Listed S&G Group 2 Dial Lock: Premium Sargent & Greenleaf mechanical dial lock engineered for extreme precision and commercial burglary security.
- Dual Relocking Defense System: Features an external relocker combined with an internal spring-loaded relocking mechanism that locks down boltwork if the lock is tampered with or struck.
- Drill-Resistant Hardplate: High-strength hardened steel plate guards the core lock mechanism against drill attacks.
- 5 Solid Steel Locking Bolts & Full Dead Bar: Solid 5-bolt system paired with a full-length hinge dead bar ensures total door retention even if external hinges are cut.
- Air-Spring Door Assist: Heavy-duty hydraulic air-spring bar allows smooth, effortless opening and holds the heavy steel door open during use.
- Durable Powder-Coated Finish: Premium powder coating guards the outer and inner surfaces against moisture and ambient wear when embedded in concrete.
Technical Specifications
| Model | B3500 |
| Brand | Hollon Safe |
| Safe Type | In-Floor Foundation Safe / High-Capacity Concealed Safe |
| Burglary Rating | B-Rating |
| Door Construction | 1/2" Thick Solid Steel Door |
| Lock Type | UL Listed S&G Group 2 Dial Combination Lock |
| Locking System | (5) Solid Steel Locking Bolts + Full Length Dead Bar |
| Relocker Protection | Spring-Loaded Internal Relocking Device & External Relocker |
| Lock Protection | Drill-Resistant Hardplate |
| Door Assist | Air-Spring Bar for easy, smooth lifting |
| Exterior Finish | Powder Coated for Durable Protection |
| Exterior Dimensions (H x W x D) | 18" x 13-1/2" x 23-1/2" |
| Interior Dimensions (H x W x D) | 16-1/2" x 13" x 23" |
| Weight | 140 lbs |
Frequently Asked Questions
How is the Hollon B3500 floor safe installed?
The Hollon B3500 is designed to be set directly into a concrete slab or foundation floor. A hole is prepared in the foundation, the safe body is positioned flush with the top level, and concrete is poured around all sides to permanently anchor it into the structure.
How does the Hollon B3500 compare in size to the B2500?
The Hollon B3500 provides substantially greater storage volume, featuring exterior dimensions of 18" H x 13-1/2" W x 23-1/2" D and an interior measuring 16-1/2" H x 13" W x 23" D. It weighs 140 lbs compared to the 93 lb B2500, making it ideal for holding larger cash trays, handguns, bullion, and multiple document files.
Is the Hollon B3500 safe fireproof?
While B-rated floor safes focus on heavy physical burglary protection, embedding the steel body inside a solid concrete foundation delivers natural high-level thermal insulation against fire heat.
What type of lock comes standard on the B3500?
The B3500 features a commercial-grade UL Listed Sargent & Greenleaf (S&G) Group 2 dial combination lock guarded by a drill-resistant hardplate and dual relockers.
How heavy is the door on the B3500 and is it difficult to open?
Despite having a solid 1/2" steel door plate, opening the safe is easy thanks to the integrated air-spring bar hydraulic lift assist, which absorbs the weight and keeps the door propped open smoothly.
What are the exterior and interior dimensions of the B3500?
The exterior dimensions are 18" H x 13-1/2" W x 23-1/2" D, interior dimensions are 16-1/2" H x 13" W x 23" D, and the total weight is 140 lbs.
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