Ugongolo lwe-fiberglass oluyimilo engu-H luyiphrofayili esezingeni eliphezulu futhi esebenza kahle kakhulu enokusatshalaliswa kwendawo esezingeni eliphezulu kanye nesilinganiso samandla nesisindo esinengqondo. Luqanjwe ngoba ingxenye yalo esezingeni elifanayo nohlamvu lwesiNgisi oluthi "H". Njengoba zonke izingxenye zogongolo lwe-fiberglass oluyimilo engu-H zihlelwe ngama-engeli angakwesokudla, ugongolo lwe-fiberglass oluyimilo engu-H lunezinzuzo zokumelana nokugoba okunamandla kuzo zonke izinhlangothi, ukwakhiwa okulula, ukonga izindleko kanye nesisindo esincane sesakhiwo, futhi lusetshenziswe kabanzi.
Iphrofayili yesigaba esinqamulayo engabizi enomumo wesigaba esinqamulayo ofana nohlamvu lwesiLatini olukhulu u-H, olubizwa nangokuthi ugongolo lwe-fiberglass oluyindilinga, ugongolo lwe-I olubanzi (onqenqemeni) noma ugongolo lwe-I oluhambisanayo. Ingxenye yesiphambano sogongolo lwe-fiberglass oluyindilinga oluyindilinga u-H ivame ukuba nezingxenye ezimbili: ipuleti le-web kanye ne-flange, eyaziwa nangokuthi ukhalo kanye nohlangothi.
Izinhlangothi zangaphakathi nezangaphandle zama-flanges ogongolo lwe-fiberglass oluyimilo engu-H zihambisana noma zisondelene nokulingana, kanti iziphetho ze-flange zise-engeli efanele, yingakho kuthiwa yi-parallel flange I-beam. Ubukhulu bewebhu bogongolo lwe-fiberglass oluyimilo engu-H buncane kunobogongolo be-I olujwayelekile olunokuphakama kwewebhu okufanayo, kanti ububanzi be-flange bukhulu kunobogongolo be-I olujwayelekile olunokuphakama kwewebhu okufanayo, ngakho-ke lubizwa nangokuthi i-wide-edge I-beam. Kunqunywa ngesimo salo, i-section modulus, i-moment of inertia kanye namandla ahambisanayo ogongolo lwe-fiberglass oluyimilo engu-H zingcono kakhulu kune-I-beams ezivamile zesisindo seyunithi efanayo.
