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Liberty Centurion 18 Gun Safe

Select Your Size: 18 | No Door Panel | 59.5" x 24.25" x 22"

Liberty Centurion 18 Gun Safe

The Centurion 18 builds on the proven performance of the Centurion 12 with increased capacity and added flexibility. Designed for growing collections, it offers dependable protection with Liberty’s trusted construction and security features.

With dual-flex interior shelving (on select configurations) and 30 minutes of fire protection, this model balances capacity, versatility, and value.

🔑 Key Features

  • 14-Gauge Steel Body
  • Level 3 Security
  • 7 Solid State™ Locking Bars
  • 30 Minutes Fire Protection
  • Dual-Flex Interior (Select Models)
  • Electronic Lock Access

💡 Best For

  • Expanding firearm collections
  • Budget-conscious buyers needing more space
  • Versatile interior storage

Liberty Safe Security Level 3 badge with the number 3 highlighted in gold and black; levels 4–10 displayed in light gray.

🛡️
Level 3 Security Learn more
🔥
40 Minute Fire Protection Learn more
🇺🇸
Made in the USA From U.S. and global parts
Lifetime Warranty Backed by Liberty Safe
🚚 Professional Delivery & Installation Available Delivery starts at $300 for this safe. Final pricing depends on location, floor level, stairs, access, and setup. View delivery options
SAFE SPECS CN18
Long Gun Storage 18
Steel Thickness 14-gauge steel
Locking Bar Size 4" W × 3/16" thick
Exterior (H × W × D) 59.5 × 24.25 × 20
Exterior Volume 16.7 cu ft
Interior (H × W × D) 56 × 22.25 × 13.5
Interior Volume 9.7 cu ft
Minimum Doorway 22"
Weight 336 lbs
    • Measurements and dimensions are + or - 1/8" to all measurements for manufacturing variances.
    • Dimensions listed are for the safe footprint and are rounded up to the nearest quarter inch. To be sure the safe will fit in your space, add ¼” to the depth for the outlet kit, 1.5” for a plug, and 1.75” for the handle.
    • Gun capacity may vary depending upon size of guns and scopes.
    • Liberty reserves the right to change or update product specifications, colors and model sizes at any time.
    • Made in the U.S.A. from U.S. and Global Parts.

Safe Sizing Guide

Don’t Outgrow Your Safe

Most customers underestimate how much safe space they’ll need over time. Before choosing a model, think about what you need to protect today — and what you may want to store later.

  • Choose a safe 20–30% larger than your current needs.
  • Manufacturer gun counts are optimistic, especially with scopes.
  • Interior space is smaller than exterior dimensions.
  • Allow room for the handle, door swing, outlet kit, and plug.
Read the Full Safe Sizing Guide

Quick Fit Check

Before you buy, measure:

  • Your room or closet space
  • Doorways and hallways
  • Stairs or tight turns
  • Door swing clearance

Not sure? Call us before ordering and we’ll help confirm fit.