ʻO ka lāʻau fiberglass ʻano H he ʻāpana kūʻokoʻa waiwai a me ka ʻike kiʻekiʻe me ka hoʻolaha ʻana o ka ʻāpana cross-sectional i ʻoi aku ka maikaʻi. Ua kapa ʻia ʻo ia no ka mea ua like kona ʻāpana keʻa me ka leka Pelekane "H". No ka mea, ua hoʻonohonoho ʻia nā ʻāpana a pau o ka beam fiberglass H-shaped ma nā kihi ʻākau, ʻo ka H-shaped fiberglass beam ka mea maikaʻi o ke kūpaʻa kūlou ikaika i nā ʻaoʻao āpau, hana maʻalahi, mālama kumukūʻai a me ke kaumaha o ke kūkulu ʻana, a ua hoʻohana nui ʻia.
ʻO ka ʻaoʻao ʻaoʻao pili waiwai me ke ʻano ʻāpana ʻāpana like me ka huaʻōlelo Latin nui H, i kapa ʻia hoʻi ke kaola uila fiberglass āpau, ka ʻaoʻao ākea (ka ʻaoʻao) I-beam a i ʻole ka flange I-beam like. ʻO ka ʻāpana keʻa o ka beam fiberglass H-like ʻelua mau ʻāpana: pūnaewele a me ka pā flange, ʻike ʻia ʻo ka pūhaka a me ka ʻaoʻao.
ʻO nā ʻaoʻao o loko a me waho o nā lehelehe o ka lāʻau fiberglass H-like a kokoke paha i ka like, a aia nā ʻaoʻao flange ma nā kihi ʻākau, no laila ua kapa ʻia ka inoa like ʻole I-beam. ʻOi aku ka mānoanoa pūnaewele o ka lāʻau fiberglass H-like ma mua o ka I-beam maʻamau me ke kiʻekiʻe pūnaewele like, a ʻoi aku ka nui o ka laulale ma mua o nā I-beam maʻamau me ke kiʻekiʻe pūnaewele like, no laila ua kapa ʻia ʻo ia he ākea- lihi I-beam. Hoʻoholo ʻia e kona ʻano, ʻoi aku ka maikaʻi o ka modulus pauku, ka manawa o ka inertia a me ka ikaika like o ka pahu fiberglass H-like ma mua o nā I-beam maʻamau o ke kaupaona like.
