Ibyuma biremereye kuruta ibikoresho byubaka nka beto, ariko imbaraga zayo ziri hejuru cyane. Kurugero, mugihe kimwe cyumutwaro, uburemere bwicyuma cyicyuma cya truss ni 1 / 4-1 / 3 gusa murwego rumwe rwumutambiko wa beto wubatswe hejuru, kandi niba igisenge cyicyuma cyoroshye cyane gisakaye, gusa 1 / 10. Kubwibyo, ibyuma byubaka birashobora kwihanganira imizigo minini kandi ikagereranya umwanya munini kuruta ibyuma byubakwa.Ingaruka yo kuzigama ingufu ni nziza. Inkuta zakozwe mu buryo bworoshye, buzigama ingufu kandi busanzwe bwa C bumeze nka C, ibyuma bya kare, na sandwich. Bafite imikorere myiza yubushyuhe bwumuriro hamwe no kurwanya umutingito mwiza.