Barrier Substance Rating
Standard Glass/Plywood 2
Cheap Material/Drywall/Regular Tires 3
Average Materials/Ballistic Glass/Plastiboard 4
Heavy Material/Chain Link (Alloy or Densiplast)/Plasticrete 6
Reinforced Materials/Densiplast/Kevlar Wallboard/Armored Glass 8
Structural Materials/Plastisteel 12
Heavy Structural Materials/Steel-Reinforced 16
Armored/Reinforced Materials/Blast Plated 24
Hardened Materials/Milspec 32

Glass Doors: Rating of Glass.
Normal Doors: Must reduce to 1/2 barrier to pass.
Security Doors: Must reduce to 0 barrier to pass.

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