Superior Master SM25


Master Series by Superior

10 Ga Steel Construction | 3/4″ Steel Plate Door | LED Lights | MADE IN THE USA!


Frequently Bought Together

Price for all:   $15.00



The Master Series is Superior’s best-selling safe.  This masterpiece has it all–the right combination of security, fire protection, style and enduring value.
The Master’s first line of defense is its body and door construction. Its 10-gauge steel body, with Double-Steel Door Casement, is almost 6 times stronger than the lightweight 14-gauge box store safes. The body is pressure formed with a 5/8″ corner radius bend, increasing strength and providing distinctive styling.
Its Double-Step door contains 3/8″ of steel thickness, 1/4″ outer steel plus a 12-gauge inner steel plate. The door edge is increased to 1/2″ using multi-layer reinforcements. The door is approximately 38 times stronger than the lightweight China-built containers.
The Master Series provides state-of-the-art door defense systems including: full inner door steel, Cam-Lock pressure reliever, Diamond-Embedded Armor Plate lock protection and a mechanical relocking system.

In addition to its heavy steel construction, the Master has four-way active boltworks, with 11/2” diameter door bolts. Its fire rating is unsurpassed in its class at 1650° for 90 minutes. Its mirror-like exterior finish and full velour interior adds a lasting touch of class.
Besides the attractive style and finish, the Master Series provides a heavy steel foundation–a foundation that will provide years of security.





  • 2″ Thick Composite Walls
  • 10-Gauge Steel Walls
  • Three Layers of Fire Insulation
  • Double-Steel Door Casement
  • Two Fire Seals
  • Four-Way Active Bolts
  • Up to 20, 1-1/2″-Diameter Bolts
  • Door-Dentent System
  • Roughneck Bolt Guides
  • Cam-Lock Pressure Reliever
  • Plush Velour Interior
  • High Capacity Gun Racks
  • Deluxe Door Organizer
  • LED Lighting
  • External 120-Volt Inlet

Maximum-Security Door

Lock Protection


  • 4-5/8″ Thick Double-Step Door
  • 1/4″ Thick Outer Door, 12-Gauge Inner Door
  • 1/2″ Reinforced Door Edge
  • Three Layers of Fire Insulation
  • Five-Spoke Handle with Slip Clutch
  • Sargent & Greenleaf Group II Dial Lock
  • Superior’s Auto-Relock System
  • Diamond-Embedded Armor Plate
  • 1650°F at 90-Minute Fire Rating
  • UL Residential Security Rating
  • Tested in an ASME Certified Facility
  • Lifetime Warranty

Additional information

Weight 825 lbs
Dimensions 26.5 × 32 × 60.5 in
Master Colors

Black, Bronze, Cherry, Dark Cherry, Gold Dust, Granite, Gunsmoke, Ivory, Platinum, Sandstone, Silver Birch