FireKing 4-1831-C Four Drawer Letter 31" D Fire File Cabinet
Price: $3,833.50
- Fire Rating: 60 mins 1700° UL (Underwriters Laboratories)
- External Dimensions: 52.75"H x 17.69"W x 31.56"D
- Internal Dimensions: 10.38"H x 12.19"W x 26"D
- Cubic Inches: 1.9 cubic feet
- Weight: 573 lbs
VERIFIED PROTECTION RATINGS:
UL Class 350 1-hour fire protection for four drawers of letter files
Built for businesses that file irreplaceable records, the FireKing 4-1831-C Classic High Security four-drawer letter cabinet carries a UL-listed Class 350 1-hour fire rating, tested at outside temperatures up to 1700 degrees Fahrenheit and a UL 30-foot impact rating. It ships standard with a UL-listed Medeco high-security key lock and is made in the USA.
This is a full-height vertical cabinet measuring 52.75 inches high, 17.75 inches wide, and 31.56 inches deep, weighing 573 pounds. Each of the four letter-width drawers offers an interior of 10.38 inches high, 12.19 inches wide, and 26 inches deep (about 1.90 cubic feet), holding hanging letter folders in a standard office footprint.
Engineering & Security
- UL-listed Medeco key lock: The standard high-security keyway resists picking and restricts key duplication, controlling who can open the cabinet.
- Lock upgrade paths: Buyers may upgrade to a UL-listed mechanical, high-security mechanical, or digital electronic lock for added access control.
- 573-pound vertical body: Heavy fire-insulated construction across all four drawers makes the cabinet difficult to remove or tip during a forced entry.
- Eleven powder-coated finishes: Scratch-resistant powder-coat options let the cabinet match office or home decor without compromising the steel shell.
- Made in the USA: FireKing manufactures the Classic High Security line domestically, backing the cabinet with established commercial filing pedigree.
- Not burglary rated: By design this is a fire-protection file cabinet, not a burglary safe; pair it with a rated safe for high-value cash or valuables.
Fire Protection & Interior
- UL Class 350 1-hour rating: The UL listing certifies interior temperatures stay below 350 degrees Fahrenheit for one hour, protecting paper records.
- Tested to 1700 degrees F: FireKing tested the cabinet at outside furnace temperatures reaching 1700 degrees Fahrenheit, matching the series fire certification.
- UL 30-foot impact rating: Heated to 1550 degrees for 30 minutes, dropped 30 feet onto rubble, then reheated, simulating a multi-story collapse.
- Water-resistant body: The cabinet resists water intrusion from a sprinkler system or fire hose during and after a blaze.
- Four letter-width drawers: Each drawer holds roughly 1.90 cubic feet of hanging letter files, totaling full vertical filing capacity.
Ideal Buyer & Use Cases
The FireKing 4-1831-C suits offices, medical practices, and home businesses that need protected, everyday access to a large volume of letter-size records. At 52.75 inches high, 17.75 inches wide, and 31.56 inches deep and 573 pounds, it provides four full drawers of UL Class 350 1-hour fire protection.
If four drawers exceed your needs, the three-drawer 3-1831-CPA or two-drawer 2-1831-CPA letter models step the capacity down. For wider files, the legal-width 4-2131-CPA matches this cabinet's four-drawer height with broader drawers.
Fire Rating
60 mins
Fire Certification
UL (Underwriters Laboratories)
Fire Rating (°F)
1700°
Fill Type
Fire-Resistant Material
Made In
USA
Lock Type(s)
Electronic, Mechanical, Key
Location
File Cabinet
Total Body Thickness
2 inches
External Depth
31.56 inches
External Height
52.75 inches
External Width
17.69 inches
Weight
573 lbs
Internal Height
10.38 inches
Internal Width
12.19 inches
Internal Depth
26 inches
Cubic Inches
1.9 cubic feet
Fire Rating
60 mins
Fire Certification
UL (Underwriters Laboratories)
Fire Rating (°F)
1700°
Fill Type
Fire-Resistant Material
Made In
USA
Lock Type(s)
Electronic, Mechanical, Key
Location
File Cabinet
Total Body Thickness
2 inches
External Depth
31.56 inches
External Height
52.75 inches
External Width
17.69 inches
Weight
573 lbs
Internal Height
10.38 inches
Internal Width
12.19 inches
Internal Depth
26 inches
Cubic Inches
1.9 cubic feet
