I-steel grating, eyaziwa nangokuthi i-bar grating noma i-grating yensimbi, ihlanganisa igridi evulekile yemigoqo yensimbi, lapho imigoqo ethwalayo, egijima ohlangothini olulodwa, ihlukaniswa ngokunamathiselwe okuqinile emigodleni ewela egijima ngokuzungezile noma ngemigoqo egobile exhumayo enwebekayo. phakathi kwabo, eklanyelwe ukubamba imithwalo esindayo enesisindo esincane.Isetshenziswa kabanzi njengephansi, i-mezzanines, izitebhisi, uthango, izembozo zemisele kanye nezinkundla zokulungisa emafektri, ama-workshops, amakamelo ezimoto, iziteshi zetroli, izindawo zokulayisha ezisindayo, imishini ye-boiler nezindawo zemishini esindayo, njll.