1-3/4" Expandable KD
Daybar's EF / EF K Series frames are designed to accommodate the broadest range of wall construction with a single adjustable product. The ideal solution when existing wall types are unknown, or during new construction where wall construction might otherwise be held up in waiting for the manufacture of custom jamb depth frames.
EF Series frames can be used in wall thicknesses ranging from 3-1/2" to 12". These easy to install frames are made with 16 gauge galvanneal steel and can be fire rated up to 90 minutes. Suitable for use with 1-3/4” doors and recommended for interior or exterior commercial, industrial, and residential applications.