Ginin bene na biyu a cikin ɗakin tare da karamin square yana da manyan fa'idodin yankin, ƙungiyar ɗakin, da ƙirar ɗakin, da ƙirar ɗakin, da yiwuwar ginin a kansu Don ƙaramin farashi. Daidaitaccen rufin daga mita 3 na santimita 20 shine mafi kyau duka a kisan wannan aikin.