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 locate...
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...
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"...
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...