No, an adjustable base anchor is not supplied on frames with existing opening anchors.
The anchor design for use in existing masonry walls, is a pierce and dimple in the frame soffit for 3/8"...
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...
Both the DW and K-Series frames are identical with the exception of the base anchoring. Both the DW and K-series frames are supplied with a field adjustable compression anchor in each jamb located ...
Drywall Slip-on frames are recommended and designed to be installed as KD (Knock Down) assemblies and not recommended to be welded (SUA). If a DW-Series or K-Series is welded prior to installa...