Phoenix World Class 3-Drawer Lateral Fireproof File Cabinet, 31" Wide, Class 350 1-Hour Rated (LAT3W31)

The Phoenix LAT3W31 Fireproof Lateral File Cabinet is a 3-drawer, 31" wide lateral fireproof file cabinet designed for legal and letter-size filing in one of the most compact footprints in the Phoenix lateral file lineup. It is a strong choice for private offices, clinics, law offices, reception areas, home offices, school offices, accounting departments, and smaller records rooms that need dependable fire protection without moving to a wider cabinet.

This model offers more protected filing capacity than a 2-drawer cabinet while keeping the narrow 31" width that makes placement easier in tighter spaces. The 3-drawer design provides useful vertical storage for active files, client records, employee documents, patient files, school records, legal files, financial paperwork, and archived business documents. At 41-3/4" high, the top surface may also be used for a printer, scanner, office supplies, or temporary file sorting.

The LAT3W31 supports both legal and letter-size files, stored front-to-back or side-to-side. This gives your office flexibility when organizing mixed filing systems. Built with Phoenix proprietary Styronite® insulation, this cabinet carries a UL Class 350 fire rating and is tested to withstand 1700°F for 1 hour. Each drawer is independently insulated to help protect contents even if another drawer is open.

Key Product Details

• Model: LAT3W31
• Product Line: World Class Insulated Files
• Drawer Count: 3 drawers
• File Compatibility: Letter and legal-size files, side-to-side or front-to-back
• Exterior Dimensions: 41-3/4"H x 31"W x 23-5/8"D
• Interior Drawer Dimensions: 10-1/2"H x 25"W x 15"D
• Weight: 500 lbs.
• Standard Colors: Black, Light Gray, and Putty
• Delivery: Free white glove delivery included
• Warranty: 3-Year Parts and Labor Warranty plus Lifetime After-Fire Replacement Warranty

Fire, Impact, and Water Protection

The Phoenix LAT3W31 is designed to protect important paper records from fire and related emergency damage. The cabinet is UL Class 350 rated for 1 hour at 1700°F, helping keep paper documents below critical temperatures during a fire. This makes it a much stronger records protection option than a standard metal file cabinet.

The cabinet is also impact tested to withstand a 30 foot drop while maintaining integrity. This matters because real fires can involve collapsing floors, falling debris, and heavy emergency response conditions. The LAT3W31 is also explosion tested for 2000°F flash fire exposure.

Water resistance is another important part of fire protection. Sprinklers and fire hoses can damage paper records even if flames do not directly reach the cabinet. The LAT3W31 uses labyrinth seals and gaskets to help resist water from sprinklers and hose spray.

Security and Drawer Protection

• Key-operated plunger lock: Secures all drawers at once and includes 2 keys.
• Separate insulated drawers: Each drawer is independently insulated for added protection.
• Anti-tip protection: Prevents more than one drawer from opening at the same time.
• Heavy-duty suspension: Supports smooth drawer operation, even when loaded.
• Durable textured enamel finish: Built for professional office environments.

The separate insulated drawer design is especially useful in busy offices. If one drawer is open during an emergency, the remaining closed drawers continue to provide protected storage as individual insulated compartments. This helps reduce the risk of total document loss if the cabinet is being accessed when an emergency begins.

Why Choose a 3-Drawer 31" Lateral Fireproof File?

A 3-drawer 31" lateral fireproof file cabinet is ideal when you need more capacity than a 2-drawer model but want the narrowest lateral footprint available in this Phoenix series. It gives you protected lateral filing access without the added width of 38" or 44" cabinets.

This makes the LAT3W31 a good fit for offices where space is limited but records still need serious protection. It can work well in private offices, compact administrative areas, clinics, small legal offices, home offices, front office spaces, and departments that need secure storage close to daily work areas. The 3-drawer height also provides a practical top surface, making it more versatile than a taller 4-drawer file in some layouts.

Specifications

Delivery Information

This cabinet includes free white glove delivery. Because the LAT3W31 weighs 500 lbs., delivery details should be reviewed before shipment. Please tell us in advance if the delivery location includes stairs, tight turns, elevators, narrow doorways, small truck access, remote locations, or any other special access conditions.

• Commercial or residential delivery: Available with free shipping.
• Dock-to-dock delivery: Best for commercial locations with a loading dock. The cabinet is left on the pallet at the dock.
• Liftgate or curbside delivery: Used when no loading dock is available. The cabinet is lowered to ground level and left outside on the pallet.
• Full-service delivery: The cabinet is brought inside, placed where requested, and packaging is removed. Maximum of 3 steps inside the building. Please allow approximately 10 business days.

Additional charges may apply for stairs, restricted access, remote locations, small truck requirements, or other special site conditions. Delivery details are confirmed before shipment. Failure to disclose special delivery conditions may result in additional fees or restocking charges if the unit is returned.

Helpful Resources

• Shop All Lateral Fireproof File Cabinets
• Browse All Fireproof File Cabinets
• View Phoenix 2 Drawer 31" Models
• View Phoenix 4 Drawer 31" Models