The HD 4018 is our most popular safe model due to its ideal size and price point. Offering a generous 6 cubic foot capacity, this rugged workhorse performs its duties flawlessly for generations.

HD-Series 4018 Specifications:
  • Cubic Capacity: 6 Cubic Feet
  • Interior Dimensions: 40" H x 18" W x 15.5" D
  • Min. Exterior Dimensions: 41" H x 19" W x 21" D
  • Min. Weight: 428 lbs.
  • Priced From $3,122 - $7,256

Interior Configuration

This model comes standard with the following configuration:

Interior Configuration

• 3 adjustable shelves.


* Subtract $1,219 for
non fire-rated model.

Protection Level

The first line of defense for any security safe is the strength of the material used to construct its door and walls.
A substantially thick solid steel door and five robust steel walls are fundamental to the safe's ability to protect your valuables, and the primary means of preventing a determined criminal from gaining entrance.

Wall and door thickness is at the very core of a high security safe's ability to protect.
This should always be your number one concern when deciding on any safe.

HD TL-15
Body Steel
High Security Door Steel
Fire-Cladding on Door
Fire-Cladding on Body
  • 2 ½" total door barrier material
  • 2 ¾" total body barrier material
  • Fire-rated for 90 min. at 1700°
  • Flush door frame design with overbuilt spread resistant doorframe
  • 1” laminated, interlocked & double-welded door jamb
  • U.L. approved high security Group 2 lock
  • Ball bearing hard plate
  • Double anchor locking bolt carriage design
  • 1” hardened chrome locking bolts with anti-drive resistance
  • 5 active and passive relocking devices
  • 4 - 5/8” base anchor holes
HD Plus TL-30
Body Steel
High Security Door Steel
Fire-Cladding on Door
Fire-Cladding on Body

All the standard features of
TL-15 rated safes plus:

  • 3" total door barrier material
  • 3" total body barrier material
  • Ball and roller bearing hinges

+ $1,855

HD Ultra
Body Steel
High Security Door Steel
Ballistic Door Armor
Fire-Cladding on Door
Fire-Cladding on Body

All the standard features of
TL-30 rated safes plus:

  • 3 ½" total door barrier material
  • 3 ½" total body barrier material
  • ½" ballistic door armor

+ $2,915

There are many great benefits that come with the Brown Safe fire protection.

+ Fire protection up to 90 min. at 1700 degrees!
+ Increased protection level from burglary with our solid steel core

Although fire protection has the increased benefits for keeping valuables safe, removing fire protection has benefits as well.

+ Smaller wall thickness to fit in smaller spaces
+ Weight is usually far less than a fire safe. Weight reduction may be ideal for those looking to install a safe in an area where foundation construction may not support heavy objects.

Below you can see the difference in specifications.

HD-Series 4018 TL-15 WITH Fire Protection
Exterior Dimensions: 45.5" H x 24" W x 26" D
Weight: 1198 lbs.
HD-Series 4018 WITHOUT Fire Protection
*Note: This model does not meet the TL-15 rating.
Exterior Dimensions: 41" H x 19" W x 21" D
Weight: 428 lbs.
HD-Series 4018 Plus TL-30 WITH Fire Protection
Exterior Dimensions: 46" H x 24.5" W x 26.5" D
Weight: 1620 lbs.
HD-Series 4018 Plus WITHOUT Fire Protection
*Note: This model does not meet the TL-30 rating.
Exterior Dimensions: 41.5" H x 19.5" W x 22" D
Weight: 782 lbs.
HD-Series 4018 Ultra COM WITH Fire Protection
Exterior Dimensions: 47" H x 25.5" W x 28" D
Weight: 2160 lbs.
HD-Series 4018 Ultra WITHOUT Fire Protection
Exterior Dimensions: 42.5" H x 20.5" W x 23" D
Weight: 1370 lbs.
REMOVE Fire Protection - Subtract $1,219

Security Options

Glass Plate Relocking Device

+ $395

- Provides added burglary protection.
- Increased sensitivity against forced entry attacks.
- Glass plate shatters setting off relockers at an early stage in the burglary, increasing the difficulty of entry.

Silent Signal Alert

+ $395

- Triggered by either a hidden button or an alternate unlock entry code, safes equipped with the slient signal alert feature interface directly with your alarm or home automation system.

- With the silent signal feature in place, if the unfortunate situation ever arises where the safe owner is forced to open the safe against their will, the safe can be unlocked in a normal manner while an undetectable alert is secretly sent to the homes monitoring system which in turn relays a message to security authorities, immediately alerting them to the hold-up situation.

Entry Method

Choose from two high security lock types.

Electronic Push-Button Lock

Traditional Dial Lock

Exterior Color Finish

If the standard HD Bronze doesn't fit your desires, we offer several exterior color options sure to satisfy your individual style.
All HD-Series safes are finished in a rugged, low-sheen, textured paint coating designed to stand up to years of abuse.

*Gloss finish is optional with additional charge.

Additional Options

The HD Series has many additional features to further customize your safe for your needs.

Gloss Paint Finish
(call for quote)
Left-Hinge Location
Pedestal Riser
(call for quote)
Internal Power Strip w/USB
LED internal lighting
Custom Shelf Layout
( call for quote )
3-Spoke Handle

Or call (760) 233-2293 to speak with a Brown Safe representative.