In a pair of hollow metal doors, the active leaf is typically prepared to receive a primary locking mechanism, such as a cylindrical lockset, mortise lock, or panic exit device. The inactive leaf, often referred to as the fixed or passive door, is usually equipped with top and bottom flush bolts to secure it in place when not in use. Additionally, an overlapping astragal is included to bridge the gap between the meeting edges of the doors, enhancing both security and sound/light sealing. When both doors are required to function as active leaves—allowing independent or simultaneous operation—exit devices or push/pull hardware must be installed on each door.

Key Features:

• Fabricated from heavy-duty 18-gauge steel to ensure strength, durability, and resistance to impact

• Engineered with either a rigid honeycomb core or polystyrene core to provide structural stability, thermal insulation, and sound dampening

• Available in equal and unequal pair configurations to accommodate various opening sizes and design requirements