Knock Down Lead Lined Door Frames

A&L Shielding’s Lead lined Knock Down Hollow Metal Door Frames are available with lead thickness from 1/32” to 1/8” as required for shielding the partition as needed. The Knock Down version is commonly used in existing walls. They are available with most standard hardware preps and are designed to support the lead lined door weights.

Our standard frames are primed 16 gage cold rolled steel, with 2” faces & head, double rabbet drywall profile with compression anchors and jamb depth as required for the partition.

Frames are normally lead lined on the door side of the jamb if the lead in the wall is on the same side of the partition (refer to our Type 1 detail). But if the lead door and the lead in the walls are on opposite sides, then the entire frame needs to be lead lined (refer to our Type 2 detail).

Heads are reinforced for regular & parallel arm closers. Frames are primed painted gray.

• Single - 4’0″ x 12’0″
• Pair - 8’0″ x 12’0″

• Cold Rolled Steel (standard)
• A60 Galvanized

• 16 (standard)
• 14
• 12

• 2″ (standard)
• 4″

• 2″ (standard)
• 4″

• Steel Stud “Z” (Standard at Welded frames)
• Wood Stud
• Masonry Strap
• Existing Opening (EO)
• Compression (standard at KD frames)

• Masonry
• Drywall return (standard)

• Double Rabbet (standard)
• Single Rabbet

• 20
• 45
• 60
• 90

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