glass bead sizes

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You can only use one GBK Glass Bead Kit (1/4") per device on fire rated openings. Glass Bead Kit is for use on doors with raised glass beads.
Shim Kits, GBK,SK19R, SK18RMC, SK17RMC, SK19V, SK18V, SK17V
Maximum glass light size for a 90 minute (1 1/2 hour) door depends on the type of glass being installed. Wire glass = 100 square inches is max exposed glass when wire glass is used. Note - ma...
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...
Steelcraft offers all the standard lights as well as special size glass lights in the H-series door. Effective April 1, 2012, (Bulletin # B-100.12) the default for Dezigner Trim in H-Series Doors...