ʻO ka lāʻau IPN, i ʻike ʻia hoʻi he IPE beam, he ʻano o ka I-beam maʻamau ʻEulopa me kahi ʻāpana keʻa i hoʻolālā ʻia e komo pū ana nā flanges like a me kahi pali ma nā ʻaoʻao flange i loko. Hoʻohana pinepine ʻia kēia mau kaola i ke kūkulu ʻana a me ka ʻenekinia hoʻolālā no ko lākou ikaika a me ka versatility i ka hāʻawi ʻana i ke kākoʻo no nā hale like ʻole e like me nā hale, nā alahaka, a me nā ʻoihana ʻoihana. Ua ʻike ʻia lākou no ko lākou hiki ke halihali i ka ukana a hoʻohana nui ʻia i nā noi like ʻole ma muli o kā lākou hana hilinaʻi.