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Are masonry T anchor fire rated?

Masonry T anchor are approved for fire rated frames up to 3 hours. T Anchors are shipped lose for field installation.

Anchor construction: The T portion and the strap do have minimum dimensions that must be held.

  1. Both the "T" and strap must be minimum 18 gage.
    • Must be welded together with 2 spotwelds minimum.
  2. Strap must be minimum 8" long x 1 1/2" wide.
    • Can be flat or corrugated with 1" round or square hole(s).
    • Strap location is typically centered on the T portion.
    • Can also be welded at an angle (45 deg) or offset to center due to masonry wall construction.
  3. T portion width jamb depth minus 1/4" x 3/4" min 3 3/4" max.

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