Bullet resistant doors are often used in government buildings, cashier stands, high crime areas, or any structure where increased safety is desired. They are generally tested in accordance with UL 752 and assigned a level from 1-10 that defines how resistant the door is to gunfire.

Steel doors are typically available up to level 8. A security consultant should analyze the building conditions to determine the appropriate bullet resistance level required.

1bullet resistant doors - illustration of 9mm bullet9mm (124g) FMJ3
2illustration of .357 Magnum caliber bullet.357 Magnum (158g) SP3
3illustration of .44 Magnum caliber bullet.44 Magnum (244g) SP3
4illustration of .30 caliber rifle bullet.30 Caliber Rifle (180g) SP1
5illustration of 7.62 mm rifle bullet7.62mm Rifle (150g) FMJ1
6illustration of 9mm multi bullet9mm Multi (124g) FMJ5
7illustration of 5.56 mm rifle bullet5.56mm Rifle (55g)5
8illustration of 7.62 multi rifle bullet7.62 Multi Rifle (150g) FMJ8
8 (AP)illustration of 30-06 rifle bullet30-06 Rifle (166g) AP8

The doors may be flush or have full glass vision lights. They are also available in pairs, fire rated, STC rated and blast resistant.

The standard that should be specified is often spelled out by whomever is commissioning the project. UL 752 is the most common test method. NIJ 0108.01 is one of the primary specifications used by the government and NCEL-MIL-SAMIT is generally used for military projects.

Bullet resistant doors are available with a variety of cores, such as steel stiffened, honeycomb, and polystyrene. It is only necessary to specify to a performance level and not to a specific core material. Many of the cores are proprietary at the higher levels.


The manufacturers below offer bullet resistant doors that are built to SDI standards. Click their logos for more information.

Security Metal Products