Welded vs kd

RELATED FAQS

Question
Answer
Welded (SUA) frames: Welded frames are designed, manufactured and supplied with either square cut/notched corners or with (saw or die) miters and may or may not have connection tabs and slots. Thes...
DW-Series Fire Rated Borrowed Lights are available in the following sizes: 60 minute (1 hour) rating = 2721 square inches of visible glass. maximum frame rabbet to rabbet dimensions = 78 1/4...
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 Walls: N...
 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 height ...
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...
Steelcraft does offer Thermal Break Frameson the FT series. Thermal break frames are available as:3-sided frames onlyFrames are available in 16 or 14 gauge steelFT series frames meet the requi...
Additional information on Thermal Break Frames can be found on Tech Data Pages 224 thru 227 
Drywall Slip-on Frame is an industry term describing a 3 sided frame designed to be installed on a wall composed of steel or wood studs with gypsum board or other facing material and is i...
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...
Side Light and Side Panel frames - Side Light and Side Panel frames are not KD (Knock Down), they must be assembled and welded. All side lite and side panel frames must be assembled and welde...
Steelcraft have tested different types of doors and frame assemblies using Zero International gasket seals for the various STC ratings. Tests are in accordance to ASTM...
Frames can be installed either KD (knock down) or welded to receive the STC rating.
Steelcraft borrowed light frames are not listed/tested. Check with the glass manufacture if they are listed and with what type of framing used.
Sound seals are required. Zero International Gasket Notes: Perimeter Seals – Zero #475 applies to the stop of the head and jambs. Door bottom – Zero #367, surface applied. Threshold ...