FireKing 3-3122-C 31-Inch Wide 3-Drawer Lateral Fireproof File Cabinet

The FireKing® Classic Lateral Fireproof File Cabinet, Model 3-3122-C, is a 3-drawer, 31-3/16" wide fireproof lateral file cabinet designed for serious letter and legal-size document protection in a compact footprint. It is a strong choice for law offices, medical offices, accounting firms, administrative departments, home offices, schools, corporate offices, and records rooms that need secure active file storage without moving to a wider 38" or 44" cabinet.

This FireKing Classic lateral cabinet combines UL Class 350 1-hour fire protection, 30-foot impact testing, ETL 30-minute digital media verification, water resistance, a UL-listed Medeco® high-security key lock, and Made in USA construction. It is built for offices that need more than standard filing and want dependable protection for vital paper records, confidential files, and documents that cannot be easily replaced.

The 3-drawer layout provides more storage capacity than a 2-drawer cabinet while keeping a practical mid-height design. The 31" wide format helps conserve wall space, making this cabinet useful in smaller offices, private work areas, clinics, reception spaces, and compact records rooms where secure fireproof filing is still essential.

Key Product Details

• Model: 3-3122-C
• Product Line: FireKing Classic Lateral Fireproof File Cabinet
• Drawer Count: 3 drawers
• File Compatibility: Letter and legal-size filing
• Exterior Dimensions: 40-1/4"H x 31-3/16"W x 22-1/8"D
• Interior Drawer Dimensions: 10-3/8"H x 25-3/16"W x 15-1/8"D
• Weight: 534 lbs.
• Standard Lock: UL-listed Medeco® high-security key lock
• Country of Origin: Made in USA
• Warranty: FireKing Limited Lifetime Warranty

Certified Fireproof Protection

The FireKing 3-3122-C is built for real-world disaster protection, not just everyday office storage. The UL Class 350 1-hour fire rating helps protect paper records during severe fire exposure. This level of protection is important for offices that store contracts, legal files, medical records, financial documents, HR records, school records, property documents, and other original paper files.

The cabinet is also impact tested with a 30-foot drop after the burn test, helping protect contents in conditions associated with building fires, falling debris, and structural collapse. This is one of the key differences between a true fireproof file cabinet and a standard metal office file cabinet.

This model also includes ETL 30-minute fire verification for common digital media such as hard drives, CDs, DVDs, and thumb drives. Important digital records should still be backed up off-site or in the cloud, but this rating provides additional short-term protection for certain media stored inside the cabinet.

Water resistance is another important benefit. Sprinklers and fire hoses can damage paper files even when flames do not directly reach the cabinet. FireKing Classic lateral cabinets are designed to help protect contents from water exposure during emergency response.

Filing Features and Daily Use

• Letter and legal filing supports the most common office file sizes.
• Compact 31" lateral format provides protected file storage while using less wall space than wider cabinets.
• 3-drawer capacity offers more storage than a 2-drawer cabinet without the full height of a 4-drawer unit.
• High-side drawer bodies support hanging folders without separate hanging folder frames.
• Independent drawer protection allows each drawer to function as its own insulated container.
• Confidential file storage is useful for legal files, patient records, HR files, accounting records, contracts, titles, deeds, and business documents.

The FireKing 3-3122-C is a good fit for offices that need active records close at hand. Files can be organized by client, patient, account, case, department, employee, year, property, or file category. The lateral drawer layout keeps file groups visible and accessible, which can make daily filing faster than working from deeper vertical file drawers.

Construction and Security

FireKing Classic lateral cabinets are built for long-term office use, fire resistance, impact protection, and secure document storage. The cabinet uses 100% gypsum fire-resistant insulation reinforced by a 1" x 2" lattice made of 14-gauge galvanized welded steel wire. Insulation between drawers helps each drawer act as a separate protected compartment.

The powder-coated finish is applied to all sides, including the bottom, and is designed to resist scratches and stains. Field-replaceable steel panels and drawer heads help extend the useful life of the cabinet if exterior damage occurs. Surface-mounted drawer pulls allow more insulation inside the drawer heads, improving the cabinet’s protective construction.

The UL-listed Medeco® high-security key lock provides stronger file security than a standard office cabinet lock. A two-position drawer catch allows access to certain drawers while drawers containing sensitive files can remain locked.

Specifications

Color Options and Delivery

For the fastest delivery, choose one of our primary FireKing finish options: Black, Parchment, or Platinum. Additional FireKing powder-coated colors are available, including Arctic White, Ivory White, Tan, Taupe, Brown, Sand, Champagne, and Pewter. Non-primary colors typically require an additional 10-day lead time before shipment.

This cabinet weighs 534 lbs. and ships by freight on a 53-foot tractor trailer. Standard delivery is intended for commercial business locations with safe truck access, normal receiving hours, and either a loading dock, forklift, or accessible curbside freight area.

Most commercial deliveries are straightforward when the delivery location has normal freight access and the correct delivery option is selected at checkout. Before ordering, please confirm receiving hours, dock access, driveway clearance, and the delivery point.

Delivery Options

• Dock or Curbside Delivery: Best for commercial locations that can receive freight from a full-size truck. The cabinet is delivered on a pallet, and the customer is responsible for moving it from the delivery point.
• Inside Doorway or Garage Delivery: Available as an upgrade for qualifying commercial or residential locations. This service is intended for delivery just inside the first accessible doorway, lobby, receiving area, or garage. The cabinet remains packaged and on the pallet.
• Full-Service Set-in-Place Delivery: Available as an upgrade for qualifying locations with ground-floor or elevator access. This service includes uncartoning, placement, and removal of packaging materials.

Step Limit: Inside delivery and full-service delivery are limited to no more than 3 steps up or down. If your delivery requires more than 3 steps, stairs, tight turns, long carries, restricted truck access, floor protection, a certificate of insurance, a special appointment request, or other unusual site conditions, please contact us before placing your order.

Residential Deliveries: Residential delivery is available; however, this item is a very heavy freight shipment and is best suited for curbside or garage delivery when shipping to a residence. If full-service residential delivery is needed, we may require a delivery review before shipment to confirm truck access, driveway access, doorway clearance, and a safe delivery path. The delivery carrier may be unable to complete full-service delivery if the delivery area is too tight, difficult, or unsafe.

Please review doorway width, hallway turns, elevator access, floor load concerns, and the final placement location before selecting inside delivery or full-service delivery. If you are unsure which delivery option is right for your location, contact us before ordering.

• 31" Lateral Spec Sheet
• FireKing Product Color Options
• FireKing Lock Options
• FireKing Warranty Information
• Full FireKing Product Catalog
• Shop All Lateral Fireproof File Cabinets
• Shop All Fireproof File Cabinets