Tsarin Karfe namu na Sakandare yana tallafawa da daidaita firam ɗin gini na farko yayin samar da ingantattun wuraren gyarawa don rufin rufi da tsarin bango. Yawanci ya haɗa da purlins C/Z, ɗigon bango, rufin rufi da takalmin gyaran bango, igiyoyin ɗaure, ƙwanƙolin eave, da sauran abubuwan haɗin gwiwa. An ƙera su bisa ga zanen aikin da buƙatun kaya, waɗannan mambobi masu nauyi amma masu ɗorewa suna taimakawa wajen canja wurin lodi, inganta yanayin tsarin gaba ɗaya, da rage yawan amfani da ƙarfe. Tare da ainihin prefabrication, galvanized ko fenti saman jiyya, da sauri a kan-site shigarwa, na biyu karfe Tsarin ana amfani da ko'ina a bita, sito, masana'antu, dabaru cibiyoyin, jirgin sama rataye, da kuma aikin gona gine-gine.