1) He nui ka laulā o ka ʻāpana, a he mea kupaianaha ka hopena o ka puʻu.
2) He nui ka modulus māhele.
3) ʻO ka manawa kiʻekiʻe o ka inertia e hoʻonui ai i ka rigidity o ka paia o ka pale kila a hoʻemi i ka deformation structural.
4) Ka hopena anti-corrosion maikaʻi loa.
5) He maʻalahi ke kūkulu ʻana a ua pōkole ka manawa hana.
6) Hiki i ka hoʻohana ʻana i nā mea hoʻopaʻa kila kila ke maʻalahi i ka paʻakikī o nā mea nānā a me nā mea ʻōnaehana.
7) Loaʻa ʻoi aku ka maʻalahi: Ua hana ʻia nā puʻu pepa Cold-Formed ma nā helu ʻoi aku ka nui ma mua o nā puʻu pepa wela, e hoʻonui ana i ka helu o nā lā ʻōwili e koho ai.ʻO ka manawa hana maʻamau he 2 wiki
8) Kūʻai maikaʻi: ʻO ka puʻu pepa Cold-Formed ma kahi o 30-40% ʻoi aku ka liʻiliʻi e hana ai ma mua o ka puʻu pepa wela.
9) He ʻuʻuku ke kumukūʻai no ka lawe ʻana: Ma muli o ka nui o nā mea hana puʻu pepa i hana ʻia i ke anu, ʻoi aku ka nui o ka manawa e hiki ai iā ʻoe ke loaʻa kahi wili ma kahi kokoke ma mua o ke kūʻai ʻana i nā puʻu pepa ʻōwili wela.Eia kekahi, ʻo ka koho nui o nā puʻu pepa i hana ʻia i ke anu hiki ke ʻae iā ʻoe e ʻimi i nā ʻāpana me kahi modulus ʻāpana kokoke i kāu mau kikoʻī hoʻolālā me ka piʻi ʻole o ke kaumaha.
10) ʻOi aku ka maʻalahi o ka hoʻonohonoho ʻana: Hiki i nā puʻupuʻu pepa anu i hana ʻia no ka hoʻololi ʻana he 25-degere, ma mua o ka hoʻololi ʻana o 7-a-10-degere i ʻae ʻia me ka puʻu pepa wela me ka hoʻohana ʻana i nā pōpō a me nā kumu.