UL 752 Ballistic Ratings for Guard Booths and Modular Buildings
What each UL 752 level stops, why walls, glazing, doors, transaction windows and roof must carry the same rating, and how to choose the right level for a booth or building.
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UL 752
U.S. Bullet-Resisting Standard
Levels 1 to 10
Handgun to High-Power Rifle
Whole Envelope
Walls, Glass, Doors, Roof
Threat-Based
Level Set by Your Assessment
What UL 752 is
UL 752 is the U.S. standard for bullet-resisting equipment: wall armor, glazing, doors and other components. Each level names a weapon and ammunition and the number of shots a sample must stop in laboratory testing. Guard booths, gate houses, inspection buildings and secure rooms are specified by UL 752 level.
The standard also has shotgun ratings, and some projects use the NIJ standard for ballistic-resistant materials instead. Your security team or consultant decides which standard and level apply.
This guide summarizes the levels, explains why every surface must carry the same rating, and lists what to specify. For buildings, see ballistic buildings, prefabricated guard booths and our guard booths hub.
UL 752 protection levels at a glance
Summary for planning only. The current edition of UL 752 governs test ammunition, velocities and shot patterns, so confirm the exact requirement with your security consultant.
| Level | Threat (test ammunition) | Shots | Typical use |
|---|---|---|---|
| 1 | 9mm handgun, full metal jacket | 3 | Parking, cashier and low-threat booths |
| 2 | .357 Magnum handgun | 3 | Commercial gate and checkpoint booths |
| 3 | .44 Magnum handgun | 3 | Higher-threat handgun protection, a common booth spec |
| 4 | .30-06 rifle | 1 | Rifle threats at critical sites |
| 5 | 7.62mm rifle | 1 | Rifle threats at government and utility sites |
| 6 | 9mm, multiple rounds (submachine gun) | 5 | Sustained handgun-caliber fire |
| 7 | 5.56mm rifle | 5 | Military and high-security sites |
| 8 | 7.62mm rifle, multiple rounds | 5 | Military and high-security sites |
| 9 | .30-06 armor-piercing | 1 | Specialized high-threat facilities |
| 10 | .50 caliber rifle | 1 | Specialized high-threat facilities |
Every surface must carry the same level
A ballistic building is only as strong as its weakest component. Rated wall panels with standard glass, or a rated window in an unrated frame, do not provide the protection on the label. Walls, glazing, frames, doors, transaction windows, deal trays, speak-through ports and the joints between them all need to be rated, with armor overlapping at every joint.
Penetrations for HVAC, conduit and cables are protected with baffles or armored boxes so a hole for a wire is not a hole in the protection.
How to choose a ballistic level
Assess the threat
Your security team or consultant identifies likely weapons, distances and history at the site.
Pick the standard and level
UL 752 (or NIJ) and the level that covers the assessed threat, plus any forced-entry requirement.
Decide the coverage
Which walls, glass, doors and transaction points need protection, and whether roof and floor do.
Coordinate the rest
HVAC, power, data and windows sized and detailed so nothing breaks the envelope.
Forced entry is separate
Ballistic ratings measure resistance to bullets, not to tools or vehicles. If attackers could try to break in, specify forced-entry resistance too, and protect the booth from vehicles with bollards or barriers in front of the lanes.
Booth placement and protection are covered on our prefabricated guard booths page.
Factory-built vs. retrofit
Adding armor to an existing booth means replacing wall panels, glazing, doors and frames, and the joints between new and old parts are hard to make reliable. A purpose-built ballistic booth or building integrates the armor during manufacture, so overlaps, frames and penetrations are detailed together and documented.
Rated buildings are heavier than standard ones, which affects the base, anchoring and how they are lifted into place. Lead times are longer and confirmed per project.
Guard shacks and gate housesRated booths for truck gates, plant entrances and secure campuses.
Ballistic buildings and enclosuresLarger rated buildings, equipment rooms and secure work areas.
Prefabricated guard boothsIndustrial booth sizes, layouts, HVAC and transaction windows.Related: doors and windows, wall panels, guard towers and the ballistic-rated guard shack example. Back to the in-plant buildings hub.
Where ballistic booths and buildings are used
What to include in a ballistic booth request
- Standard and level (for example UL 752 Level 3), and whether it applies to every wall or only the threat-facing sides.
- Roof and floor protection, if threats can come from above or below.
- Openings: door swing, number of windows, transaction window height, deal tray and speak-through.
- Forced-entry requirement, if any, and vehicle protection at the lanes.
- Systems: HVAC, power, data, cameras and gate controls, so penetrations are planned and protected.
- Site: pad, anchoring, crane access and the address for wind and snow loads.
Vehicle Protection: Bollards and Railing
Ballistic ratings do not stop vehicles. Steel pipe bollards and safety railing gates in front of booth lanes and doors can be ordered online.
Frequently asked questions
What UL 752 level does a guard booth need?
What is a bullet-resistant UL 752 shack?
Does a ballistic booth need a bulletproof roof?
Is bullet-resistant glass clear?
Can an existing booth be upgraded to ballistic?
Is ballistic protection the same as forced-entry protection?
Specify a ballistic booth or building
Send your threat level or assessment, size and site. We will return a rated configuration, drawings and a quote.