Hoʻokaʻawale nui ʻia ʻo I-beam i ka I-beam maʻamau, I-beam māmā a me I-beam ākea ākea.E like me ka lākiō kiʻekiʻe o ka flange i ka pūnaewele, ua māhele ʻia i ka laulā, waena a me ka haiki flange I-beams.ʻO nā kikoʻī o nā mea mua ʻelua he 10-60, ʻo ia hoʻi, ʻo ke kiʻekiʻe e pili ana he 10 cm-60 cm.Ma ke kiʻekiʻe like, ʻo ka I-beam māmā he liʻiliʻi liʻiliʻi, pūnaewele lahilahi a me ke kaumaha māmā.Hōʻike ʻia ʻo I-beam ākea ākea, ʻo ia hoʻi ʻo H-beam, e nā wāwae ʻelua like ʻole a ʻaʻohe inclination ma ka ʻaoʻao o loko o nā wāwae.No ke kila ʻāpana waiwai a ua ʻōwili ʻia ma luna o ka wili honua kiʻekiʻe ʻehā, no laila ua kapa ʻia ʻo ia ʻo "universal I-beam".ʻO ka I-beam maʻamau a me ka māmā I-beam ua hoʻokumu i nā kūlana aupuni.