welded frames cmu wall

RELATED FAQS

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Wallboard must penetrate a minimum of ½” into the hollow metal frame, based on NFPA Pamphlet 80, (page 80-2, figure A.4.6.3.1) .
The following size limitations per frame unit, are in enforced for welded elevation frames shipped from the factory. These limitations are in place due to the physical size of shipping tr...
The rough opening dimensions are the same for either Welded (SUA) or Knock Down (KD) frames For F, FN, FE, DE, MU three sided frames and four sided borrowed light frames: New masonry W...
 For DW, K three sided frames and four sided borrowed light frames: Three sided frame = door opening width (order size) plus 1 1/2" minimum to 2" maximum and the door opening hei...
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...
DW and K-Series frames are designed to slip onto a stud wall after the wall is finished (painted, wall papered, etc). Walls can be either wood stud or steel stud Used only for interior applicat...
The following are quantities of EMA anchors (pierce and dimples) based on range of frame height:  Quantity  Nominal Frame Height     2     1'...
F-Series frames are available without returns: Fire Rated frames must have welded corners. Frames must include weled in wood or steel stud anchors. Installation requirements: ...
Masonry T anchor are approved for fire rated frames up to 3 hours. T Anchors are shipped lose for field installation. Anchor construction: The T portion and the strap do have minimum dim...
Knock Down (KD) frames: KD frames are designed, manufactured and supplied with integral miters which include all notches, interlocking corner tabs and slots to allow for field assembly and do not r...