Split Steel Frames are two pieces allowing for an easier installation but also a variance in size. When put together, they have the appearance of a double rabbeted frame. When finishing walls or replacing a unit, the exact size of the finished wall may not be known; split steel frames allow for an adjustment space to fit these walls.
The Reeb Specialty Products Split Steel Frame is fabricated from galvannealed steel. The base of the frame is 18-gauge while the closure is 22-gauge with 1” of adjustability. The base frame is kerfed to receive foam weatherstrip. It has been tested and can maintain a 90-minute fire rating. The frame is prepped for a 4” hinges that has a 5/8″ radius. The strike side is prepped with a 2-3/4” t strike.
To finish the look of the frame, snap-on casing is also available.
The jamb depth is dependent on the sill used and the height of the unit. A standard fire sill in a 6/8 unit can range from 4” to 8-1/2” jamb depths; if the unit is 7/0 or 8/0 then the jamb depth can only be 4-1/2” to 7-1/2”. A public access sill in a 6/8 unit can range from 4” to 8-1/2” jamb depths; if the unit is 7/0 or 8/0 then the jamb depth can only be 4-1/2” to 7-1/2”. There is also a no sill option and this only works with jambs that are 4-1/2” to 7-1/2” in depth.