The following anchors are approve for use in FEMA Tornado Resistant openingsMasonry walls:Jamb anchors - Wire masonry
anchorsSill (base) anchors - Adjustable base anchorsExisting walls:Jamb an...
Yes, an additional jamb anchor can be used at the bottom of the frame in lieu of the typical (adjustable or weld-in) base anchor in fire rated frames.
This is limited to the anchor designed for...