ʻOiai ke ʻano o nā ʻaoʻao ʻelua me kahi hiʻohiʻona flange ākea, ʻokoʻa loa kā lākou mau kūlana hana a me nā hoʻolālā dimensional:
Nā Kūlana a me nā Papa Mea:Hoʻokō pono nā EN H-Beams i nā kūlana ʻEulopa (e like me EN 10025), me nā papa mea maʻamau e komo pū anaS355JRa me S355J2. Ma ka ʻaoʻao ʻē aʻe, pili nā ASTM W-Beams i nā kūlana o ka American Society for Testing and Materials (e like me ASTM A6/A6M), ʻo ka mea maʻamau e hoʻohana ana i ke kila haʻahaʻa haʻahaʻa ikaika kiʻekiʻe.ASTM A992(a i ʻoleA572 Gr.50), ka mea e hāʻawi ana i ka ikaika hua maikaʻi loa a me ka hiki ke hoʻopili ʻia.
ʻĀpana Geometry:Nā kukuna H ʻEulopa (e like meHEA, HEB, a meHEM) hōʻike i kahi lakio ʻōnaehana kiʻekiʻe o ka mānoanoa o ka flange i ke kiʻekiʻe o ka pūnaewele, i hōʻailona ʻia e nā flanges ākea, alo like. I ka hoʻohālikelike ʻana, ʻokoʻa loa ka ʻohana kikoʻī ASTM W-beam; ko lākou mau hoʻolālā (e laʻa,W14x90) pili pono i ka hohonu a me ke kaumaha maʻamau no kēlā me kēia kapuaʻi, e hāʻawi ana i ka launa pū ʻana me ka hana ʻana me nā kiʻi paʻakikī o ke kūlana ʻAmelika.