Mea kūkulu hale ASTM A283 kila I kaola

ʻO kahi I-beam, ʻike ʻia hoʻi ʻo H-beam (no ke kolamu āpau, UC), w-beam (no ka "frange flange"), ke kukui ākea (UB), ʻo ka hui kila i ʻōwili ʻia (RSJ), a i ʻole pālua-T ( ʻoi aku ka nui ma Polani, Bulgarian, Paniolo, ʻItalia a me Kelemānia), he kaola me ka ʻāpana keʻa I a i ʻole H. ʻO nā ʻeleʻele ākea o ka I he mau lehelehe, a ʻo ka mea kū i luna ka "pūnaewele". Hana ʻia nā I-beams i ke kila kila a hoʻohana ʻia i ke kūkulu ʻana a me ka ʻenekinia kīwila.