Industry: 3211—Flat Glass
Establishments primarily engaged in manufacturing flat glass. This industry also produces laminated glass, but establishments primarily engaged in manufacturing laminated glass from purchased flat glass are classified in Industry 3231.

Building glass, flatPicture glass
Cathedral glassPlate glass blanks for optical or ophthalmic uses
Float glassPlate glass, polished and rough
Glass, colored: cathedral and antiqueSheet glass
Glass, flatSheet glass blanks for optical or ophthalmic uses
Insulating glass, sealed units—mitseSkylight glass
Laminated glass, made from glass produced in the same establishmentSpectacle glass
Multiple-glazed insulating units—mitseStructural glass, flat
Opalescent flat glassTempered glass—mitse
Ophthalmic glass, flatWindow glass, clear and colored
Optical glass, flat
Codes Titles Total Marketable US Businesses
3211Flat Glass690
321100Flat glass199
32110000Flat glass199
321101Transparent optical glass, except lenses19
32110100Transparent optical glass, except lenses8
32110101Ophthalmic glass, flat0
32110102Optical glass, flat9
32110103Spectacle glass2
321102Strengthened or reinforced glass48
32110200Strengthened or reinforced glass8
32110201Laminated glass19
32110202Tempered glass21
321103Construction glass376
32110300Construction glass44
32110301Building glass, flat18
32110302Insulating glass, sealed units38
32110303Skylight glass20
32110304Structural glass11
32110305Window glass, clear and colored245
321104Plate and sheet glass22
32110400Plate and sheet glass16
32110401Plate glass, polished and rough3
32110402Sheet glass3
321199Flat glass, nec26
32119901Antique glass16
32119902Cathedral glass2
32119903Float glass6
32119904Opalescent glass, flat0
32119905Picture glass2